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[[Image:R-speed of light boxplot.png|thumb|Box plot of data from the [[Michelson-Morley experiment]].]]
In [[descriptive statistics]], a '''box plot''' (also known as a box-and-whisker diagram) is a convenient way of graphically depicting the [[five-number summary]], which consists of the smallest observation, lower [[quartile]], [[median]], upper [[quartile]] and largest observation.▼
▲In [[descriptive statistics]], a '''box plot''' (also known as a '''box-and-whisker diagram''') is a convenient way of graphically depicting the [[five-number summary]], which consists of the smallest observation, lower [[quartile]], [[median]], upper [[quartile]] and largest observation.
The box plot may also identify [[outlier]]s and possibly the [[sample mean|mean]].
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