In descriptive statistics, a box plot (also known as a box-and-whisker diagram 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. Box plots are able to visually show different types of populations, without any assumptions of the statistical distribution. The spacings between the different parts of the box can help indicate variance, skew and identify outliers.
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