# Summarizing quantitative data

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Practice

Mean, median, and mode

7 questions

Practice

Calculating the mean

7 questions

Practice

Calculating the median

7 questions

Practice

Learn

Practice

Calculating the mean: data displays

4 questions

Practice

Calculating the median: data displays

4 questions

Practice

Effects of shifting, adding, & removing a data point

4 questions

Practice

Missing value given the mean

4 questions

Practice

Median & range puzzlers

4 questions

Practice

Learn

Practice

Standard deviation of a population

4 questions

Practice

Learn

Learn

Practice

Creating box plots

7 questions

Practice

Reading box plots

7 questions

Practice

Interpreting quartiles

7 questions

Practice

Identifying outliers

4 questions

Practice

About this unit

This unit covers common measures of center like mean and median. We'll also learn to measure spread or variability with standard deviation and interquartile range, and use these ideas to determine what data can be considered an outlier.