Center and Spread
Grade 10•45 minutes
Learning Objective
I can compare and contrast different measures of center and spread to describe the distribution of a data set.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Define "range" and "interquartile range (IQR)" in the context of data sets. Explain how they differ in what they tell you about the spread of the data.
2. Calculate the interquartile range (IQR) of the following data set: 12, 15, 18, 20, 22, 25, 28, 30, 35.
3. Explain the relationship between variance and standard deviation. Why is standard deviation often preferred when describing the spread of a dataset?
...and 4 more questions
Educational Video
Measures of Spread: Crash Course Statistics #4
CrashCourse