Box and Whisker Plots Objective: students will learn the parts of a box and whisker. Then they will use those and create a plot and be able to answer questions.

Information Box/whisker plot: organize data into four parts Median: middle value Lower quartile: median lower half. Upper quartile: median upper half. Lower extreme: low value Upper extreme: high value Box/whisker plot: organize data into four parts Each part is 25%

Create Box and whisker plots To make: Order data Find median, extremes, quartiles. Plot points and create.

Make box and whisker plots 2, 14, 15, 20, 24, 35, 91 7, 16, 21, 34, 36, 52, 52, 78

Make box and whisker plots 8, 19, 23, 24, 25, 40, 78, 89, 98, 100 15, 17, 18, 19, 20, 20, 22, 23, 25, 26

Interpreting Data Compare the median, range, and interquartile range. What percent of Yankees are less than 31? Cubs? Which team would you say is the oldest? Yankees ages 40 24 30 31 35 Cubs ages 39 22 25 27 31

Wrap-up Questions/Comments Hw: test/worksheet