Do It Yourself!: How Extreme Values Affect the Mean and Median

Use your mouse to drag the data point marked in green. Watch how the mean and the median change as this point takes on new values.

Data set #1

Data set #2

Data set #3

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The applet(s) on this page is from Seeing Statistics,™ an online, interactive statistics textbook. Seeing Statistics is a registered service mark used herein under license. The applet(s) on this page was designed to be used exclusively with Introduction to Probability and Statistics, Eleventh Edition, by Mendenhall, Beaver, & Beaver. (c) 2003, Duxbury Thomson Learning. The applet(s) on this page may not be copied, duplicated, or reproduced for any reason.