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Ch.2: Measures of Center and SpreadWorksheetSee all chapters
All Chapters
Ch.1: Displaying Numeric Data
Ch.2: Measures of Center and Spread
Ch.3: Probability and Rules
Ch.4: The Discrete Random Variable
Ch.5: The Binomial Random Variable
Ch.6: Types of Continuous Random Variable Distributions
Ch.7: The Standard Normal Distribution (Z-Scores)
Ch.8: Using The Z-Score
Ch.9: Sampling Distributions: Mean
Ch.10: Sampling Distributions: Proportion
Ch.11: Hypothesis Testing: Part 1
Ch.12: Hypothesis Testing: Part 2
Sections
Measures of Central Tendency
Measures of Spread: Standard Deviation
Measures of Spread: Interquartile Range
Boxplots (The Five Number Summary)
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Next SectionMeasures of Spread: Interquartile Range

Concept #1: Determining The Standard Deviation

Concept #2: Determining The Standard Deviation: Intro

Practice: Determine the standard deviation for the following data set: 81 8 4 2 3 1 2 9 9 2.

Practice: Determine the standard deviation for the following data set: 7 56 46 32 69 34 53 76.

Practice: Which of the data sets (Practice 1 or Practice 2) is more spread out?

Practice: Which of the data sets (Practice 1 or Practice 2) is more appropriately described by the standard deviation?

Previous SectionMeasures of Central Tendency
Next SectionMeasures of Spread: Interquartile Range