How do you identify outliers when displaying data in a boxplot?

1 Answer
Shantelle
Jul 29, 2018

Outliers occur when outside the range of #Q1-1.5(IQR)# and #Q3+1.5(IQR)#, where #IQR# means Interquartile range, or the third quartile minus the first quartile. #Q1# is the first quartile and #Q3# is the third quartile.

If an outlier occurs, it is graphed on the box-and-whisker plot as a dot. For example, the outlier here is at the data value #95#:
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Hope this helps!

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