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U13 L2.1 Population Parameters (Mean Median Mode) October 14, 2016 U13 L2.1 Population Parameters (Measure of Central Tendency Mean, Median, and Mode) Population is the set of all subjects with a given characteristic that is being studied. All populations by their nature, have Natural or InterIndividual Variability. Census: a study of an entire population A sample is a part of a population. Algebra 2 Kisslinger, Small, Martin U13 L2.1 Population Parameters (Mean Median Mode) October 14, 2016 Populations have Population Parameters which you know as statistics that describe the population. ex. mean, median, standard deviation, or interquartile range. You are to use your graphing calculator to complete these exercises. Important Statistics Mean the average of the data items X Median the middle data item when the items are sorted Mode the number that appear the most in the set of data Algebra 2 Kisslinger, Small, Martin U13 L2.1 Population Parameters (Mean Median Mode) October 14, 2016 1st and 3rd Quartiles the 25th and 75th percentiles Interquartile Range Q3 Q1 Standard Deviation on average, how far each data item is from the mean. We have 2 Standard Deviations, the Population Standard Deviation and the Sample Standard Deviation. A survey was taken amongst 11 people of the number of passwords they currently have to remember. The results are shown below: 6, 0, 1, 2, 2, 1, 3, 4, 3, 1, 3 Find the mean, median, and mode of the following data. Algebra 2 Kisslinger, Small, Martin U13 L2.1 Population Parameters (Mean Median Mode) October 14, 2016 Using your TI Graphing Calculator STAT, ENTER to enter data in L1 then STAT, CALC, 1VAR STATS L1 to find the mean, standard deviation, and quartiles ** arrow up onto L1 and CLEAR to empty L1... don't DELETE Algebra 2 Kisslinger, Small, Martin U13 L2.1 Population Parameters (Mean Median Mode) Algebra 2 Kisslinger, Small, Martin October 14, 2016 U13 L2.1 Population Parameters (Mean Median Mode) Outlier: member(s) of a data set that are far away from the rest of the data Homework Mean, Median, Mode Worksheet Algebra 2 Kisslinger, Small, Martin October 14, 2016