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03_DescripStats

# 03_DescripStats - • What is a median • What is the...

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PsychSim 5: DESCRIPTIVE STATISTICS Name: __________________________________________ Section: ________________________ Date: __________________________________________ This activity introduces you to the basic statistics that researchers use to summarize their sets of data. The numbers below represent the scores of a group of students on a math test. Use them to per- form the required calculations. 10, 13, 10, 12, 11, 7, 12, 11, 6, 11, 12, 11, 8, 10, 9 Distribution of Scores Sort the scores; that is, arrange them in order from lowest to highest. Create a frequency histogram. Measures of Central Tendency What is a mode? What is the mode of your distribution? _____________________

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Unformatted text preview: • What is a median? • What is the median of your distribution? _____________________ PsychSim 5: Descriptive Statistics 15 Measures of Central Tendency (continued) • What is a mean? • How is a mean calculated? • What is the mean of your distribution? __________________ Show your calculations. Skewed Distributions • Which measure of central tendency would be the best “average” to describe a skewed distribution? Why? Measures of Variability • How is a range calculated? • What is the range of your distribution? ______________________ • What is standard deviation? • How is standard deviation calculated? 16 PsychSim 5: Descriptive Statistics...
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03_DescripStats - • What is a median • What is the...

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