A Box Plot is a graphical display of a set of arithmetic data in terms of its five number summaries: sample minimium, lower quartile, median, upper quartile, and sample maximum. The above Box plot has lines at its lower, median, and upper quartile values and "whiskers" that extend from each end of it to a selected value. This image is a Box plot of car mileage for a series of nations and it shows that the U.S.A has the greatest mileage distribution.
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