Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Lakewood City Schools Course of Study for Statistics Scope and Sequence – Statistics is an elective course wherein students are introduced to major theories and techniques for collecting, analyzing, and drawing conclusions from data. Students in this course will be exposed to three broad conceptual themes: exploring data, planning a study, and anticipating a pattern in advance. The direct application of statistical techniques on standard problems and the analysis of graphical representations will be emphasized. Technology will be used to develop understanding. More class time will be used to practice the basic concepts of the course. It is open to students in Grades 10-12. The prerequisite is one year of Algebra 2 with a C average or better. Course Overview: The General Organizational for this Course Unit numbers correspond to sub-chapter numbers in our textbook. Exploring Data: Describing patterns and departures from patterns (~40%) Exploratory analysis of data makes use of graphical and numerical techniques to study patterns and departures from patterns. Emphasis will be placed on interpreting information from graphical and numerical displays and summaries. This theme is covered in Chapters 1-4 of this course. Sampling and Experimentation: Planning and conducting a study (~20%) Data must be collected according to a well-developed plan if valid information on a conjecture is to be obtained. This plan includes clarifying the question and deciding upon a method of data collection and analysis. This theme is covered in Chapter 5 of this course; ideas regarding planning and conducting a study are presented in Chapter 4 as well. Anticipating Patterns: Exploring random phenomena using probability and simulation (~40%) Probability is the tool used for anticipating what the distribution of data should look like under a given model. This theme is covered primarily in Chapters 7-9 of this course; the t distribution is covered in Chapter 10. Course of Study for Statistics Revised: 6/10/2009 Page 1 of 38 Lakewood City Schools Course of Study for Statistics Scope and Sequence – Statistics is an elective course wherein students are introduced to major theories and techniques for collecting, analyzing, and drawing conclusions from data. Students in this course will be exposed to three broad conceptual themes: exploring data, planning a study, and anticipating a pattern in advance. The direct application of statistical techniques on standard problems and the analysis of graphical representations will be emphasized. Technology will be used to develop understanding. More class time will be used to practice the basic concepts of the course. It is open to students in Grades 10-12. The prerequisite is one year of Algebra 2 with a C average or better. Course Overview: The General Organizational for this Course Unit numbers correspond to sub-chapter numbers in our textbook. Throughout this document, Ohio Academic Content Standards are abbreviated as follows. “NNO” indicates the Number, Number Sense, and Operations Standard. “M” indicates the Measurement Standard. “GSS” indicates the Geometry and Spatial Sense Standard. “PFA” indicates the Patterns, Functions, and Algebra Standard. “DAP” indicates the Data Analysis and Probability Standard. “MP” indicates the Mathematical Processes Standard. In each case the abbreviation is followed by a grade range or individual grade and then a letter or number; to indicate each relevant benchmark (grade range/letter) or indicator (grade/number). Please note that the Mathematical Processes Standard does not include indicators. In addition, references are made to the American Statistical Association’s Guidelines for Assessment and Instruction in Statistics Education (GAISE) Report. The abbreviation “G” followed by a letter indicating a level defined in this report indicates correspondence to this curricular framework. Course of Study for Statistics Revised: 6/10/2009 Page 2 of 38 Lakewood City Schools Course of Study for Statistics Unit 1.1: Displaying Distributions with Graphs Use a variety of graphical techniques to display a distribution. These will include bar graphs, pie charts, stemplots, histograms, ogives, time plots, and boxplots. Interpret graphical displays in terms of the shape, center, and spread of the distribution, as well as gaps and outliers. Standard and Benchmark Grade Level Indicators DAP_11-12/A DAP_11-12/A DAP_11-12/A DAP_11-12/A DAP_11-12/A DAP_11-12/A DAP_11-12/A DAP_11-12/A DAP_11/8 DAP_11-12/A DAP_11/8 DAP_11-12/A DAP_11-12/A Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Strategies/Resources Describe what is meant by exploratory data analysis. Explain what is meant by the distribution of a variable. Differentiate between categorical variables and quantitative variables. Construct bar graphs and pie charts for a set of categorical data. Construct a stemplot for a set of quantitative data. Construct a back-to-back stemplot to compare two related distributions. Construct a stemplot using split stems. YMS text § 1.1 Construct a histogram for a set of quantitative data, and discuss how changing the class width can change the impression of the data given by the histogram. Describe the overall pattern of a distribution by its shape, center, and spread. Explain what is meant by the mode of a distribution. Recognize and identify symmetric and skewed distributions. YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 Page 3 of 38 Lakewood City Schools Course of Study for Statistics Unit 1.1: Displaying Distributions with Graphs Use a variety of graphical techniques to display a distribution. These will include bar graphs, pie charts, stemplots, histograms, ogives, time plots, and boxplots. Interpret graphical displays in terms of the shape, center, and spread of the distribution, as well as gaps and outliers. DAP_11-12/A DAP_11-12/A DAP_11-12/A Course of Study for Statistics Revised: 6/10/2009 DAP_11/8 Explain what is meant by an outlier in a stemplot or histogram. Construct and interpret an ogive (relative cumulative frequency graph) from a relative frequency table. Construct a time plot for a set of data collected over time. YMS text § 1.1 YMS text § 1.1 YMS text § 1.1 Page 4 of 38 Lakewood City Schools Course of Study for Statistics Unit 1.2: Describing Distributions with Numbers Use a variety of numerical techniques to describe a distribution. These will include mean, median, quartiles, five-number summary, interquartile range, standard deviation, range, and variance. Interpret numerical measures in the context of the situation in which they occur. Learn to identify outliers in a data set. Explore the effects of a linear transformation of a data set. Standard and Benchmark Grade Level Indicators DAP_11-12/B DAP_12/3 DAP_11-12/B DAP_11/8 DAP_11-12/B DAP_11/8 DAP_11-12/B, DAP_11-12/D DAP_12/3 DAP_11-12/B, DAP_11-12/D DAP_12/3 DAP_11-12/B DAP_12/3 DAP_11-12/B DAP_12/3 DAP_11-12/B, DAP_11-12/D DAP_12/3 DAP_11-12/B, DAP_11-12/D DAP_11/6 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Strategies/Resources Given a data set, compute the mean and median as measures of center. Explain what is meant by a resistant measure. Identify situations in which the mean is the most appropriate measure of center and situations in which the median is the most appropriate measure. Given a data set, find the quartiles. YMS text § 1.2 Given a data set, find the five-number summary. Use the five-number summary of a data set to construct a boxplot for the data. Compute the interquartile range (IQR) of a data set. Given a data set, use the 1.5 × IQR rule to identify outliers. Given a data set, compute the standard deviation and variance as measures of spread. YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 Page 5 of 38 Lakewood City Schools Course of Study for Statistics Unit 1.2: Describing Distributions with Numbers Use a variety of numerical techniques to describe a distribution. These will include mean, median, quartiles, five-number summary, interquartile range, standard deviation, range, and variance. Interpret numerical measures in the context of the situation in which they occur. Learn to identify outliers in a data set. Explore the effects of a linear transformation of a data set. DAP_11-12/B DAP_11/6 DAP_11-12/B DAP_11-12/B DAP_11/8 DAP_11-12/B DAP_11/3, DAP_12/3 DAP_11-12/B DAP_11/8 Course of Study for Statistics Revised: 6/10/2009 Give two reasons why we use squared deviations rather than just average deviations from the mean. Explain what is meant by degrees of freedom. Identify situations in which the standard deviation is the most appropriate measure of spread and situations in which the interquartile range is the most appropriate measure. Explain the effect of a linear transformation of a data set on the mean, median, and standard deviation of the set. Use numerical and graphical techniques to compare two or more data sets. YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 YMS text § 1.2 Page 6 of 38 Lakewood City Schools Course of Study for Statistics Unit 2.1: Measures of Relative Standing and Density Curves Be able to compute measures of relative standing for individual values in a distribution. This includes standardized values (z-scores) and percentile ranks. Use Chebyshev’s inequality to describe the percentage of values in a distribution within an interval centered at the mean. Demonstrate an understanding of a density curve, including its mean and median. Standard and Benchmark DAP_11-12/B+ DAP_11-12/B+ DAP_11-12/B+ DAP_11-12/B+ DAP_11-12/B+ DAP_11-12/B+ DAP_11-12/B+ DAP_11-12/B+ Course of Study for Statistics Revised: 6/10/2009 Grade Level Indicators Clear Learning Targets Strategies/Resources Explain what is meant by a standardized value. Compute the z-score of an observation given the mean and standard deviation of a distribution. Compute the pth percentile of an observation. Define Chebyshev’s inequality, and give an example of its use. Explain what is meant by a mathematical model. Define a density curve. YMS text § 2.1 Explain where the mean and median of a density curve are to be found. Describe the relative position of the mean and median in a symmetric density curve and in a skewed density curve. YMS text § 2.1 YMS text § 2.1 YMS text § 2.1 YMS text § 2.1 YMS text § 2.1 YMS text § 2.1 YMS text § 2.1 Page 7 of 38 Lakewood City Schools Course of Study for Statistics Unit 2.2: Normal Distributions Demonstrate and understanding of the Normal distribution and the 68-95-99.7 Rule. Use tables and technology to find (a) the proportion of values on an interval of the Normal distribution and (b) a value with a given proportion of observations above or below it. Use a variety of techniques, including construction of a normal probability plot, to assess the Normality of a distribution. Standard and Benchmark Grade Level Indicators DAP_11/7 DAP_11/7 DAP_11/7 DAP_11/7 DAP_11/7 DAP_11/7 DAP_11/7 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Identify the main properties of the Normal curve as a particular density curve. List three reasons why Normal distributions are important in statistics. Explain the 68-95-99.7 rule (the empirical rule). Explain the notation N( , ). Strategies/Resources YMS text § 2.2 YMS text § 2.2 YMS text § 2.2 YMS text § 2.2 Use a table of values for the standard YMS text § 2.2 Normal curve to compute the proportion of observations that are (a) less than a given z-score, (b) greater than a given zscore, or (c) between two given zscores. Use a table of values for the standard YMS text § 2.2 Normal curve to find the proportion of observations in any region given any Normal distribution (i.e., given raw data rather than z-scores). Use a table of values for the standard YMS text § 2.2 Normal curve to find a value with a given proportion of observations above or below it (inverse Normal). Page 8 of 38 Lakewood City Schools Course of Study for Statistics Unit 2.2: Normal Distributions Demonstrate and understanding of the Normal distribution and the 68-95-99.7 Rule. Use tables and technology to find (a) the proportion of values on an interval of the Normal distribution and (b) a value with a given proportion of observations above or below it. Use a variety of techniques, including construction of a normal probability plot, to assess the Normality of a distribution. DAP_11/7 Course of Study for Statistics Revised: 6/10/2009 Identify at least two graphical techniques for assessing Normality. Explain what is meant by a Normal probability plot; use it to help assess the Normality of a given data set. Use technology to perform Normal distribution calculations and to make Normal probability plots. YMS text § 2.2 YMS text § 2.2 YMS text § 2.2 Page 9 of 38 Lakewood City Schools Course of Study for Statistics Unit 3.1: Scatterplots and Correlation Construct and interpret a scatterplot for a set of bivariate data. Compute and interpret the correlation r between two variables. Demonstrate an understanding of the basic properties of the correlation r. Standard and Benchmark DAP_11-12/D Grade Level Indicators DAP_11/4 DAP_11/4 DAP_11/4 DAP_11/4 DAP_11/4 DAP_11-12/D DAP_11/5 DAP_11-12/D DAP_11/5 DAP_11/8 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Explain the difference between an explanatory variable and a response variable. Given a set of bivariate data, construct a scatterplot. Explain what is meant by the direction, form, and strength of the overall pattern of a scatterplot. Explain how to recognize an outlier in a scatterplot. Explain what it means for two variables to be positively or negatively associated. Explain how to add categorical variables to a scatterplot. Use a graphing calculator to construct a scatterplot. {Construct a scatterplot by hand.} {Construct a scatterplot using computer software.} Define the correlation r and describe what it measures. Given a set of bivariate data, use technology to compute the correlation r. {Manually compute r for a small data set.} List the four basic properties of the correlation r that you need to know to interpret any correlation. Strategies/Resources YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 YMS text § 3.1 Page 10 of 38 Lakewood City Schools Course of Study for Statistics Unit 3.1: Scatterplots and Correlation Construct and interpret a scatterplot for a set of bivariate data. Compute and interpret the correlation r between two variables. Demonstrate an understanding of the basic properties of the correlation r. DAP_11/8 Course of Study for Statistics Revised: 6/10/2009 List four other facts about correlation that must be kept in mind when using r. YMS text § 3.1 Page 11 of 38 Lakewood City Schools Course of Study for Statistics Unit 3.2: Least-Squares Regression Explain the meaning of a least squares regression line. Given a bivariate data set, construct and interpret a regression line. Demonstrate an understanding of how one measures the quality of a regression line as a model for bivariate data. Standard and Benchmark Grade Level Indicators DAP_11/5 DAP_11/5 DAP_11/5 DAP_11/5 DAP_11-12/D DAP_11/5 DAP_11-12/D DAP_11/8 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Strategies/Resources Explain what is meant by a regression line. Given a regression equation, interpret the slope and y-intercept in context. Explain what is meant by extrapolation. YMS text § 3.2 Explain why the regression line is called the “least-squares regression line” (LSRL). Explain how the coefficients of the regression equation, ŷ a bx , can be found given r, sx, sy, and (x, y) . Given a bivariate data set, use technology to construct a least-squares regression line. {Manually construct a least-squares regression line for a small data set.} Define a residual. YMS text § 3.2 Given a bivariate data set, use technology to construct a residual plot for a linear regression. List two things to consider about a residual plot when checking to see if a straight line is a good model for a bivariate data set. Explain what is meant by the standard deviation of the residuals. YMS text § 3.2 YMS text § 3.2 YMS text § 3.2 YMS text § 3.2 YMS text § 3.2 YMS text § 3.2 YMS text § 3.2 YMS text § 3.2 Page 12 of 38 Lakewood City Schools Course of Study for Statistics Unit 3.2: Least-Squares Regression Explain the meaning of a least squares regression line. Given a bivariate data set, construct and interpret a regression line. Demonstrate an understanding of how one measures the quality of a regression line as a model for bivariate data. DAP_11/8 DAP_11/8 Course of Study for Statistics Revised: 6/10/2009 Define the coefficient of determination, r2, and explain how it is used in determining how well a linear model fits a bivariate set of data. List and explain four important facts about least-squares regression. YMS text § 3.2 YMS text § 3.2 Page 13 of 38 Lakewood City Schools Course of Study for Statistics Unit 3.3: Correlation and Regression Wisdom A short description of the unit in narrative form goes here. Standard and Benchmark DAP_11-12/D Grade Level Indicators Strategies/Resources DAP_11/8 Recall the three limitations on the use of correlation and regression. YMS text § 3.3 DAP_11/8 Explain what is meant by an outlier in bivariate data. YMS text § 3.3 DAP_11/8 Explain what is meant by an influential observation and how it relates to regression. YMS text § 3.3 DAP_11/8 Given a scatterplot in a regression setting, identify outliers and influential observations. Define a lurking variable. YMS text § 3.3 Give an example of what it means to say “association does not imply causation.” YMS text § 3.3 Explain how correlations based on averages differ from correlations based on individuals. YMS text § 3.3 DAP_11/8 DAP_11/8 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets YMS text § 3.3 Page 14 of 38 Lakewood City Schools Course of Study for Statistics Unit 4.1: Transforming to Achieve Linearity Identify settings in which a transformation might be necessary to achieve linearity. Use transformations involving powers and logarithms to linearize curved relationships. Standard and Benchmark Grade Level Indicators DAP_12/2 DAP_12/2 DAP_12/2 DAP_12/2 DAP_12/2 DAP_12/2 DAP_12/2 DAP_12/2 DAP_12/2 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Explain what is meant by transforming (re-expressing) data. Discuss the advantages of transforming nonlinear data. Tell where y log(x) fits into the hierarchy of power transformations. Explain the ladder of power transformations. Explain how linear growth differs from exponential growth. Identify real-life situations in which a transformation can be used to linearize data from an exponential growth model. Use a logarithmic transformation to linearize a data set that can be modeled by an exponential model. Identify situations in which a transformation is required to linearize a power model. Use a transformation to linearize a data set that can be modeled by a power model. Strategies/Resources YMS text § 4.1 YMS text § 4.1 YMS text § 4.1 YMS text § 4.1 YMS text § 4.1 YMS text § 4.1 YMS text § 4.1 YMS text § 4.1 YMS text § 4.1 Page 15 of 38 Lakewood City Schools Course of Study for Statistics Unit 4.2: Relationships between Categorical Variables Explain what is meant by a two-way table, and describe its parts. Give an example of Simpson’s paradox. Standard and Benchmark Grade Level Indicators Clear Learning Targets Explain what is meant by a two-way table. Explain what is meant by marginal distributions in a two-way table. Describe how changing counts to percents is helpful in describing relationships between categorical variables. Explain what is meant by a conditional distribution. Define Simpson’s paradox, and give an example of it. Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources YMS text § 4.2 YMS text § 4.2 YMS text § 4.2 YMS text § 4.2 YMS text § 4.2 Page 16 of 38 Lakewood City Schools Course of Study for Statistics Unit 4.3: Establishing Causation Explain what gives the best evidence for causation. Explain the criteria for establishing causation when experimentation is not feasible. Standard and Benchmark Grade Level Indicators DAP_11/8 DAP_11/8 DAP_11/8 DAP_11/9 DAP_11/9 DAP_11/9 DAP_11/9 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Identify the three ways in which the association between two variables can be explained. Explain what process provides the best evidence for causation. Define what is meant by a common response. Define what it means to say that two variables are confounded. Discuss why establishing a cause-andeffect relationship through experimentation is not always possible. Explain what it means to say that a lack of evidence for cause-and-effect relationship does not necessarily mean that there is no cause-and-effect relationship. List five criteria for establishing causation when you cannot conduct a controlled experiment. Strategies/Resources YMS text § 4.3 YMS text § 4.3 YMS text § 4.3 YMS text § 4.3 YMS text § 4.3 YMS text § 4.3 YMS text § 4.3 Page 17 of 38 Lakewood City Schools Course of Study for Statistics Unit 5.1: Designing Samples Distinguish between, and discuss the advantages of, observational studies and experiments. Identify and give examples of different types of sampling methods, including a clear definition of a simple random sample. Identify and give examples of sources of bias in sample surveys. Standard and Benchmark Grade Level Indicators Define population and sample. YMS text § 5.1 DAP_11/2, DAP_12/1 Explain how sampling differs from census. Explain what is meant by a voluntary response sample. Give an example of a voluntary response sample. Explain what is meant by convenience sampling. Define what it means for a sampling method to be biased. Define, carefully, a simple random sample (SRS). List the four steps involved in choosing an SRS. Explain what is meant by systematic random sampling. Use a table of random digits to select a simple random sample. Define a probability sample. YMS text § 5.1 Given a population, determine the strata of interest, and select a stratified random sample. Define a cluster sample. YMS text § 5.1 Define undercoverage and nonresponse as sources of bias in sample surveys. YMS text § 5.1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 DAP_11/2, DAP_12/1 Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources DAP_11/2 DAP_11/2, DAP_12/1 DAP_11-12/D Clear Learning Targets YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 Page 18 of 38 Lakewood City Schools Course of Study for Statistics Unit 5.1: Designing Samples Distinguish between, and discuss the advantages of, observational studies and experiments. Identify and give examples of different types of sampling methods, including a clear definition of a simple random sample. Identify and give examples of sources of bias in sample surveys. DAP_11/2 DAP_11/2 DAP_11/2, DAP_12/1 Course of Study for Statistics Revised: 6/10/2009 Give an example of response bias in a survey question. Write a survey question in which the wording of the question is likely to influence the response. Identify the major advantage of large random samples. YMS text § 5.1 YMS text § 5.1 YMS text § 5.1 Page 19 of 38 Lakewood City Schools Course of Study for Statistics Unit 5.2: Designing Experiments Identify and explain the three basic principles of experimental design. Explain what is meant by a completely randomized design. Distinguish between the purposes of randomization and blocking in an experimental design. Use random numbers from a table or technology to select a random sample. Standard and Benchmark Grade Level Indicators DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1 DAP_11-12/C Clear Learning Targets Strategies/Resources Define experimental units, subjects, and treatment. Define factor and level. YMS text § 5.2 YMS text § 5.2 DAP_11/1 Given a number of factors and the number of levels for each factor, determine the number of treatments. Explain the major advantage of an experiment over an observational study. Give an example of the placebo effect. DAP_11-12/C DAP_11/1 Explain the purpose of a control group. YMS text § 5.2 DAP_11-12/C DAP_11/1 YMS text § 5.2 DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1 DAP_11-12/C, DAP_11-12/D DAP_11/1 DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1, DAP_11/9 Explain the difference between control and a control group. Discuss the purpose of replication, and give an example of replication in the design of an experiment. Discuss the purpose of randomization in the design of an experiment. Given a list of subjects, use a table of random numbers to assign individuals to treatment and control groups. List the three main principles of experimental design. Explain what it means to say that an observed effect is statistically significant. Course of Study for Statistics Revised: 6/10/2009 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 Page 20 of 38 Lakewood City Schools Course of Study for Statistics Unit 5.2: Designing Experiments Identify and explain the three basic principles of experimental design. Explain what is meant by a completely randomized design. Distinguish between the purposes of randomization and blocking in an experimental design. Use random numbers from a table or technology to select a random sample. DAP_11-12/C DAP_11/1 Define a completely randomized design. YMS text § 5.2 DAP_11-12/C DAP_11/1 YMS text § 5.2 DAP_11-12/C DAP_11/1 For an experiment, generate an outline of a completely randomized design. Define a block. DAP_11-12/C DAP_11/1 YMS text § 5.2 DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1 DAP_11-12/C DAP_11/1, DAP_11/9 Give an example of block design in an experiment. Explain how block design may be better than a completely randomized design. Give an example of matched pairs design, and explain why matched pairs are an example of block designs. Explain what is meant by a study being double blind. Give an example in which a lack of realism negatively affects our ability to generalize the results of a study. Course of Study for Statistics Revised: 6/10/2009 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 YMS text § 5.2 Page 21 of 38 Lakewood City Schools Course of Study for Statistics Unit 6.1: Simulation Perform a simulation of probability problem using a table of random numbers or technology. Standard and Benchmark Grade Level Indicators Clear Learning Targets Strategies/Resources DAP_11-12/C DAP_12/6 Define simulation. YMS text § 6.1 DAP_11-12/C DAP_12/6 YMS text § 6.1 DAP_11-12/C DAP_12/6 DAP_11-12/C DAP_12/6 DAP_11-12/C, DAP_11-12/D DAP_12/6 DAP_11-12/C DAP_12/6 List the five steps involved in a simulation. Explain what is meant by independent trials. Use a table of random digits to carry out a simulation. Given a probability problem, conduct a simulation in order to estimate the probability desired. Use both calculator and computer to conduct a simulation of a probability problem. Course of Study for Statistics Revised: 6/10/2009 YMS text § 6.1 YMS text § 6.1 YMS text § 6.1 YMS text § 6.1 Page 22 of 38 Lakewood City Schools Course of Study for Statistics Unit 6.2: Probability Models Use the basic rules of probability to solve probability problems. Write out the sample space for a probability random phenomenon, and use it to answer probability questions. Describe what is meant by the intersection and union of two events. Discuss the concept of independence. Standard and Benchmark Grade Level Indicators DAP_12/6 Strategies/Resources YMS text § 6.2 DAP_12/6 Explain how the behavior of a chance event differs in the short-run and longrun. Explain what is meant by a random phenomenon. Explain what it means to say that the idea of probability is empirical. Define probability in terms of relative frequency. Define sample space. DAP_12/6 Define event. YMS text § 6.2 DAP_12/6 Explain what is meant by a probability model. Construct a tree diagram. YMS text § 6.2 Use the multiplication principle to determine the number of outcomes in a sample space. Explain what is meant by sampling with replacement and sampling without replacement. List the four rules that must be true for any assignment of probability. Explain what is meant by {A B} and {A B} . YMS text § 6.2 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 Page 23 of 38 Lakewood City Schools Course of Study for Statistics Unit 6.2: Probability Models Use the basic rules of probability to solve probability problems. Write out the sample space for a probability random phenomenon, and use it to answer probability questions. Describe what is meant by the intersection and union of two events. Discuss the concept of independence. DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_11-12/D Course of Study for Statistics Revised: 6/10/2009 DAP_12/6 Explain what is meant by each of the regions in a Venn diagram. Give an example of two events A and B where A B . Use a Venn diagram to illustrate the intersection of two events A and B. Compute the probability of an event given the probabilities of the outcomes that make up the event. Explain what is meant by equally likely outcomes. Compute the probability of an event in the special case of equally likely outcomes. Define what it means for two events to be independent. Give the multiplication rule for independent events. Given two events, determine if they are independent. YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 YMS text § 6.2 Page 24 of 38 Lakewood City Schools Course of Study for Statistics Unit 6.3: General Probability Rules Use general addition and multiplication rules to solve probability problems. Solve problems involving conditional probability, using Bayes’s rule when appropriate. Standard and Benchmark Grade Level Indicators DAP_12/6 DAP_12/6 DAP_11-12/D DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 DAP_12/6 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Strategies/Resources State the addition rule for disjoint events. State the general addition rule for union of two events. Given any two events A and B, compute P(A B) . Define what is meant by a joint event and joint probability. Explain what is meant by the conditional probability P(B | A) . State the general multiplication rule for any two events. Use the general multiplication rule to define P(B | A) . Explain what is meant by Bayes’s rule. YMS text § 6.3 Define independent events in terms of a conditional probability. YMS text § 6.3 YMS text § 6.3 YMS text § 6.3 YMS text § 6.3 YMS text § 6.3 YMS text § 6.3 YMS text § 6.3 YMS text § 6.3 Page 25 of 38 Lakewood City Schools Course of Study for Statistics Unit 7.1: Discrete and Continuous Random Variables Define what is meant by a random variable. Define a discrete random variable. Define a continuous random variable. Explain what is meant by the probability distribution for a random variable. Standard and Benchmark Grade Level Indicators Strategies/Resources DAP_11/10, DAP_12/4 Define a discrete random variable. YMS text § 7.1 DAP_11/10, DAP_12/4 Explain what is meant by a probability distribution. Construct the probability distribution for a discrete random variable. Given a probability distribution for a discrete random variable, construct a probability histogram. Review: define a density curve. YMS text § 7.1 Explain what is meant by a uniform distribution. Define a continuous random variable and probability distribution for a continuous random variable. YMS text § 7.1 DAP_11/10 DAP_11/10 DAP_11/10 DAP_11/10 DAP_11/10 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets YMS text § 7.1 YMS text § 7.1 YMS text § 7.1 YMS text § 7.1 Page 26 of 38 Lakewood City Schools Course of Study for Statistics Unit 7.2: Means and Variances of Random Variables Explain what is meant by the probability distribution for a random variable. Explain what is meant by the law of large numbers. Calculate the mean and variance of a discrete random variable. Calculate the mean and variance of distributions formed by combining two random variables. Standard and Benchmark Grade Level Indicators DAP_12/4 DAP_12/4 DAP_12/4 Clear Learning Targets Define what is meant by the mean of a random variable. Calculate the mean of a discrete random variable. Calculate the variance and standard deviation of a discrete random variable. Explain, and illustrate with an example, what is meant by the law of large numbers. Explain what is meant by the law of small numbers. Given X and Y , calculate a bX , and X Y . YMS text § 7.2 Given X and Y , calculate 2a bX YMS text § 7.2 and 2X Y (where X and Y are independent). Explain how standard deviations are calculated when combining random variables. Discuss the shape of linear combination of independent Normal random variables. Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources YMS text § 7.2 YMS text § 7.2 YMS text § 7.2 YMS text § 7.2 YMS text § 7.2 YMS text § 7.2 YMS text § 7.2 Page 27 of 38 Lakewood City Schools Course of Study for Statistics Unit 8.1: The Binomial Distributions Explain what is meant by a binomial setting and binomial distribution. Use technology to solve probability questions in a binomial setting. Calculate the mean and variance of a binomial random variable. Solve a binomial probability problem using a Normal approximation. Standard and Benchmark Course of Study for Statistics Revised: 6/10/2009 Grade Level Indicators Clear Learning Targets Strategies/Resources Describe the conditions that need to be present to have a binomial setting. Define a binomial distribution. YMS text § 8.1 Explain when it might be all right to assume a binomial setting even though the independence condition is not satisfied. Explain what is meant by the sampling distribution of a count. State the mathematical expression that gives the value of a binomial coefficient. Explain how to find the value of that expression. State the mathematical expression used to calculate the value of binomial probability. Evaluate a binomial probability by using the mathematical formula for P(X k) . Explain the difference between binompdf(n,p,X) and binomcdf(n,p,X). Use both calculator and computer to help evaluate a binomial probability. If X is B(n, p) , find X and X (that is, calculate the mean and variance of a binomial distribution). YMS text § 8.1 YMS text § 8.1 YMS text § 8.1 YMS text § 8.1 YMS text § 8.1 YMS text § 8.1 YMS text § 8.1 YMS text § 8.1 YMS text § 8.1 Page 28 of 38 Lakewood City Schools Course of Study for Statistics Unit 8.1: The Binomial Distributions Explain what is meant by a binomial setting and binomial distribution. Use technology to solve probability questions in a binomial setting. Calculate the mean and variance of a binomial random variable. Solve a binomial probability problem using a Normal approximation. Use a Normal approximation for a binomial distribution to solve questions involving binomial probability. Course of Study for Statistics Revised: 6/10/2009 YMS text § 8.1 Page 29 of 38 Lakewood City Schools Course of Study for Statistics Unit 8.2: The Geometric Distributions Explain what is meant by a geometric setting. Solve probability questions in a geometric setting. Calculate the mean and variance of a geometric random variable. Standard and Benchmark Grade Level Indicators Clear Learning Targets Describe what is meant by a geometric setting. Given the probability of success, p, calculate the probability of getting the first success on the nth trial. Calculate the mean (expected value) and the variance of a geometric random variable. Calculate the probability that it takes more than n trials to see the first success for a geometric random variable. Use simulation to solve geometric probability problems. Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources YMS text § 8.2 YMS text § 8.2 YMS text § 8.2 YMS text § 8.2 YMS text § 8.2 Page 30 of 38 Lakewood City Schools Course of Study for Statistics Unit 9.1: Sampling Distributions Define a sampling distribution. Contrast bias and variability. Standard and Benchmark Grade Level Indicators DAP_12/5 DAP_12/5 DAP_12/5 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Compare and contrast parameter and statistic. Explain what is meant by sampling variability. Define the sampling distribution of a statistic. Explain how to describe a sampling distribution. Define an unbiased statistic and an unbiased estimator. Describe what is meant by the variability of a statistic. Explain how bias and variability are related to estimating with a sample. Strategies/Resources YMS text § 9.1 YMS text § 9.1 YMS text § 9.1 YMS text § 9.1 YMS text § 9.1 YMS text § 9.1 YMS text § 9.1 Page 31 of 38 Lakewood City Schools Course of Study for Statistics Unit 9.2: Sampling Proportions Describe the sampling distribution of a sample proportion (shape, center, and spread). Use a Normal approximation to solve probability problems involving the sampling distribution of a sample proportion. Standard and Benchmark Grade Level Indicators Clear Learning Targets Describe the sampling distribution of a sample proportion. (Remember: “describe” means tell about shape, center, and spread.) Compute the mean and standard deviation for the sampling distribution of p̂ . Identify the “rule of thumb” that justifies the use of the recipe for the standard deviation of p̂ . Identify the conditions necessary to use a Normal approximation to the sampling distribution of p̂ . Use a Normal approximation to the sampling distribution of p̂ to solve probability problems involving p̂ . Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources YMS text § 9.2 YMS text § 9.2 YMS text § 9.2 YMS text § 9.2 YMS text § 9.2 Page 32 of 38 Lakewood City Schools Course of Study for Statistics Unit 9.3: Sample Means Describe the sampling distribution of a sample mean. State the central limit theorem. Solve probability problems involving the sampling distribution of a sample mean. Standard and Benchmark Grade Level Indicators DAP_12/5 DAP_12/5 Course of Study for Statistics Revised: 6/10/2009 Clear Learning Targets Strategies/Resources Given the mean and standard deviation of a population, calculate the mean and standard deviation for the sampling distribution of a sample mean. Identify the shape of the sampling distribution of a sample mean drawn from a population that has a Normal distribution. State the central limit theorem. YMS text § 9.3 Use the central limit theorem to solve probability problems for the sampling distribution of a sample mean. YMS text § 9.3 YMS text § 9.3 YMS text § 9.3 Page 33 of 38 Lakewood City Schools Course of Study for Statistics Unit 10.1: Confidence Intervals – The Basics Describe statistical inference. Describe the basic form of all confidence intervals. Construct and interpret a confidence interval for a population mean (including paired data) and for a population proportion. Describe a margin of error, and explain ways in which you can control the size of the margin of error. Determine the sample size necessary to construct a confidence interval for a fixed margin of error. Standard and Benchmark Grade Level Indicators Clear Learning Targets List the (six) basic steps in the reasoning of statistical estimation. Distinguish between a point estimate and an interval estimate. Identify the basic form of all confidence intervals. Explain what is meant by margin of error. State in nontechnical language what is meant by a “level C confidence interval.” State the three conditions that need to be present in order to construct a valid confidence interval. Explain what it means by the “upper p critical value” of the standard Normal distribution. For a known population standard deviation , construct a level C confidence interval for a population mean. List the four necessary steps in the creation of a confidence interval (see Inference Toolbox). Identify three ways to make the margin of error smaller when constructing a confidence interval. Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 Page 34 of 38 Lakewood City Schools Course of Study for Statistics Unit 10.1: Confidence Intervals – The Basics Describe statistical inference. Describe the basic form of all confidence intervals. Construct and interpret a confidence interval for a population mean (including paired data) and for a population proportion. Describe a margin of error, and explain ways in which you can control the size of the margin of error. Determine the sample size necessary to construct a confidence interval for a fixed margin of error. Once a confidence interval has been constructed for a population value, interpret the interval in the context of the problem. Determine the sample size necessary to construct a level C confidence interval for a population mean with a specified margin of error. Identify as many of the six “warnings” about constructing confidence intervals as you can. (For example, a nice formula cannot correct for bad data.) Course of Study for Statistics Revised: 6/10/2009 YMS text § 10.1 YMS text § 10.1 YMS text § 10.1 Page 35 of 38 Lakewood City Schools Course of Study for Statistics Unit 10.2: Estimating a Population Mean Compare and contrast the t distribution and the Normal distribution. Standard and Benchmark Grade Level Indicators Clear Learning Targets Identify the three conditions that must be present before estimating a population mean. Explain what is meant by the standard error of a statistic in general and by the standard error of the sample mean in particular. List three important facts about the t distributions. Include comparisons to the standard Normal curve. Use Table C to determine critical t value for a given level C confidence interval for a mean and a specified number of degrees of freedom. Construct a one-sample t confidence interval for a population mean (remembering to use the four-step procedure). Describe what is meant by paired t procedures. Calculate a level C t confidence interval for a set of paired data. Explain what is meant by a robust inference procedure and comment on the robustness of t procedures. Discuss how sample size affects the usefulness of t procedures. Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources YMS text § 10.2 YMS text § 10.2 YMS text § 10.2 YMS text § 10.2 YMS text § 10.2 YMS text § 10.2 YMS text § 10.2 YMS text § 10.2 YMS text § 10.2 Page 36 of 38 Lakewood City Schools Course of Study for Statistics Unit 10.3: Estimating a Population Proportion List the conditions that must be present to construct a confidence interval for a population mean or a population proportion. Explain what is meant by the standard error, and determine the standard error of x and the standard error of p̂ . Standard and Benchmark Grade Level Indicators Clear Learning Targets Given a sample proportion, p̂ , determine the standard error of p̂ . List the three conditions that must be present before constructing a confidence interval for an unknown population proportion. Construct a confidence interval for a population proportion, remembering to use the four-step procedure (see the Inference Toolbox). Determine the sample size necessary to construct a level C confidence interval for a population proportion with a specified margin of error. Course of Study for Statistics Revised: 6/10/2009 Strategies/Resources YMS text § 10.3 YMS text § 10.3 YMS text § 10.3 YMS text § 10.3 Page 37 of 38 Lakewood City Schools Course of Study for Statistics Unit Z: tbd A short description of the unit in narrative form goes here. Standard and Benchmark Cut and paste the ODE Academic Content Standards and Benchmarks that are covered in this unit. These can be accessed on the ODE website. Course of Study for Statistics Revised: 6/10/2009 Grade Level Indicators Cut and paste the ODE Indicators that are covered in this unit. These can be accessed on the ODE website. Clear Learning Targets I can… Strategies/Resources Add your resources and strategies here (Add newly created “I Can” statements that are the Clear Learning Targets in this column, based on the grade level indicator listed to the left.) Page 38 of 38