SELECT TERMS AND SYMBOLS The following terms and symbols
... Box-and-Whisker Plot. A diagram that shows the five-number summary of a distribution. (Fivenumber summary includes the minimum, lower quartile (25th percentile), median (50th percentile), upper quartile (75th percentile), and the maximum. In a modified box plot, the presence of outliers can also be ...
... Box-and-Whisker Plot. A diagram that shows the five-number summary of a distribution. (Fivenumber summary includes the minimum, lower quartile (25th percentile), median (50th percentile), upper quartile (75th percentile), and the maximum. In a modified box plot, the presence of outliers can also be ...
True/False Questions - Academic Information System (KFUPM AISYS)
... a. 80 people who took the test scored below Franklin. b. Frankin scored as high or higher than 80 percent of the people who took the test. c. Frankin was in the bottom 20 percent of those that have taken the test. ...
... a. 80 people who took the test scored below Franklin. b. Frankin scored as high or higher than 80 percent of the people who took the test. c. Frankin was in the bottom 20 percent of those that have taken the test. ...
Chapter 1: Exploring Data Displaying Distributions with Graphs (pp
... data. Individuals may be people, but they may also be animals or things. 2. In statistics, what is meant by a variable? A variable is any characteristic of an individual. A variable can take different values for different individuals. 3. What is meant by exploratory data analysis? Exploratory data a ...
... data. Individuals may be people, but they may also be animals or things. 2. In statistics, what is meant by a variable? A variable is any characteristic of an individual. A variable can take different values for different individuals. 3. What is meant by exploratory data analysis? Exploratory data a ...
Statistical Guide - St. Cloud State University
... Multiple: Forces all predictors (2 or more) into equation to build best representation of relationship between the dependent variable and the independent variables in the equation. Stepwise: Builds a step-by-step regression model to predict the DV by examining the set of IVs and using the most signi ...
... Multiple: Forces all predictors (2 or more) into equation to build best representation of relationship between the dependent variable and the independent variables in the equation. Stepwise: Builds a step-by-step regression model to predict the DV by examining the set of IVs and using the most signi ...
Chapter 1: Why is my evil professor forcing me to learn statistics?
... Levels of Measurement • Categorical – Binary variable: Only 2 categories (male, female) – Nominal variable: More than two categories: young, middle age, elderly. – Ordinal variable: The variable is ordered by some attribute, such as pain. (each interval does not represent and EQUAL distance). Ex: R ...
... Levels of Measurement • Categorical – Binary variable: Only 2 categories (male, female) – Nominal variable: More than two categories: young, middle age, elderly. – Ordinal variable: The variable is ordered by some attribute, such as pain. (each interval does not represent and EQUAL distance). Ex: R ...
Class One: 30 March 2005 - homepages.ohiodominican.edu
... frequency with which it appeared in the data set. – For categorical variables the value of the variable will be the specific word(s) you use to describe the individuals and the frequency is a count of how many individuals are described by the word. – For quantitative variables the value of the varia ...
... frequency with which it appeared in the data set. – For categorical variables the value of the variable will be the specific word(s) you use to describe the individuals and the frequency is a count of how many individuals are described by the word. – For quantitative variables the value of the varia ...
Biology 300 - UBC Zoology
... Both are numerical and continuous b) What type of graph is this? A scatter plot. c) Describe the association between the two variables. Is the relationship between flicker fusion frequency and temperature positive or negative? Is the relationship linear or nonlinear? There is a positive nonlinear re ...
... Both are numerical and continuous b) What type of graph is this? A scatter plot. c) Describe the association between the two variables. Is the relationship between flicker fusion frequency and temperature positive or negative? Is the relationship linear or nonlinear? There is a positive nonlinear re ...
sol_display
... Quantitative; we would measure blood pressure. If we categorized the values (e.g. low, medium, high) then this would be a categorical variable. b. Is oral contraceptive use (or not) a categorical variable or a quantitative variable? Categorical; data produced from yes/no questions are categorical. c ...
... Quantitative; we would measure blood pressure. If we categorized the values (e.g. low, medium, high) then this would be a categorical variable. b. Is oral contraceptive use (or not) a categorical variable or a quantitative variable? Categorical; data produced from yes/no questions are categorical. c ...
Statistical Tests
... develop cancer compared to nonsmokers. H1: Smokers are more likely to develop cancer than are non-smokers. ...
... develop cancer compared to nonsmokers. H1: Smokers are more likely to develop cancer than are non-smokers. ...
Ch 15
... estimate to its standard error. t-Test: • Hypothesis test used for a single mean if the sample is small. Usually for samples below 30. Industry says 36. The One-Sample t-Test procedure tests whether the mean of a single variable differs from a specified constant. Example to calculate on p. 472. 1,08 ...
... estimate to its standard error. t-Test: • Hypothesis test used for a single mean if the sample is small. Usually for samples below 30. Industry says 36. The One-Sample t-Test procedure tests whether the mean of a single variable differs from a specified constant. Example to calculate on p. 472. 1,08 ...
Scientists use observations and reasoning to
... Descriptive Statistics consists of methods for organizing, displaying, and describing data by using tables, graphs, and summary measures. Inferential Statistics consists of methods that use information from samples to make predictions, decisions or inferences about a population. RAW FREQUENCY Fr ...
... Descriptive Statistics consists of methods for organizing, displaying, and describing data by using tables, graphs, and summary measures. Inferential Statistics consists of methods that use information from samples to make predictions, decisions or inferences about a population. RAW FREQUENCY Fr ...
STAT 100 - Midterm II Sample Exam (short) Spring 2013 Instructions
... B. The slope of this line tells us the correlation between age of patient and days since last visit. b) change in days since last visit for each year older a patient is, on average. c) change in the age of the patient for each extra day since the last visit. d) average days since last visit for all ...
... B. The slope of this line tells us the correlation between age of patient and days since last visit. b) change in days since last visit for each year older a patient is, on average. c) change in the age of the patient for each extra day since the last visit. d) average days since last visit for all ...
SPSS PC Version 10: Creating and Reporting Z
... • You will notice that your output contains descriptive statistics for the variable educ, including the number of valid cases, the minimum observed value, the maximum observed value and, most importantly, the mean and standard deviation. On average, the respondents in the sample have about 12.68 yea ...
... • You will notice that your output contains descriptive statistics for the variable educ, including the number of valid cases, the minimum observed value, the maximum observed value and, most importantly, the mean and standard deviation. On average, the respondents in the sample have about 12.68 yea ...
math-112 test 3 answers spring 2008
... We are trying to use 8 different variables, X1, X2, X3, X4, X5, X6, X7, and X8, to predict blood pressure in a population of adult people. We have data from 20 people and find the coefficient of determination is .64. The standard deviation of the blood pressure data was 4 (when treated like a popula ...
... We are trying to use 8 different variables, X1, X2, X3, X4, X5, X6, X7, and X8, to predict blood pressure in a population of adult people. We have data from 20 people and find the coefficient of determination is .64. The standard deviation of the blood pressure data was 4 (when treated like a popula ...
Chapter 4 - WordPress.com
... – Is there a peak? If so, how many peaks? – For categorical variables, the mode is the value that appears most often – For quantitative variables, the mode is where the peak is at – No peak: uniform – One peak: unimodal – Two peaks: bimodal – More than two peaks: multimodal ...
... – Is there a peak? If so, how many peaks? – For categorical variables, the mode is the value that appears most often – For quantitative variables, the mode is where the peak is at – No peak: uniform – One peak: unimodal – Two peaks: bimodal – More than two peaks: multimodal ...
ACTIVITY SET 1 Jan
... Quantitative; we would measure blood pressure. If we categorized the values (e.g. low, medium, high) then this would be a categorical variable. b. Is oral contraceptive use (or not) a categorical variable or a quantitative variable? Categorical; data produced from yes/no questions are categorical. c ...
... Quantitative; we would measure blood pressure. If we categorized the values (e.g. low, medium, high) then this would be a categorical variable. b. Is oral contraceptive use (or not) a categorical variable or a quantitative variable? Categorical; data produced from yes/no questions are categorical. c ...
Chapter 3 Review Two Variable Statistics
... and direction and help to isolate outliers. Residual plots can also be used as a tool for determining how the variables interact. The LSRL, correlation, and correlation coefficient can be used to predict results based on the data and to mathematically prove just how accurate these predictions are. W ...
... and direction and help to isolate outliers. Residual plots can also be used as a tool for determining how the variables interact. The LSRL, correlation, and correlation coefficient can be used to predict results based on the data and to mathematically prove just how accurate these predictions are. W ...
Stata - The University of Arizona College of Medicine
... label data: apply a label to a data set order: order the variables in a data set label variable: apply a label to a variable label define: define a set of a labels for the levels of a categorical variable label values: apply value labels to a variable encode: create numeric version of a string varia ...
... label data: apply a label to a data set order: order the variables in a data set label variable: apply a label to a variable label define: define a set of a labels for the levels of a categorical variable label values: apply value labels to a variable encode: create numeric version of a string varia ...
Review - Week 1 - Columbia Statistics
... We want to know who was measured, what was measured, how and where the data was collected and when and why the study was performed. Individuals are the objects described by a set of data. A variable is any characteristic of an individual. A categorical variable places an individual into one of sever ...
... We want to know who was measured, what was measured, how and where the data was collected and when and why the study was performed. Individuals are the objects described by a set of data. A variable is any characteristic of an individual. A categorical variable places an individual into one of sever ...
Stats_lecture_3 (Statistics lecture on bell
... z-score) is simply the number of standard deviations a particular value is either above or below the mean. The standardized score is: Positive if above the mean Negative if below the mean ...
... z-score) is simply the number of standard deviations a particular value is either above or below the mean. The standardized score is: Positive if above the mean Negative if below the mean ...