HS.D.2.c

Select and determine the appropriate measure of center based on the shape of a distribution and/or the presence of outliers.

Example Problems
The numbers below are a softball team's scores over its 13-game season.


Use the 1.5 IQR Rule to find the number of outliers.
The numbers below are a softball team's scores over its 14-game season:


Use the 1.5 IQR Rule to find the number of outliers.
The numbers below are students' scores on a math test.


Use the 1.5 IQR Rule to find the number of outliers.
Khan Academy Resources
Choosing the "best" measure of centerMean and standard deviation versus median and IQREstimating mean and median in data displays
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