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 Everyday Examples
 Box and Whisker Plot:  A diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values (outliers).


Image source: http://standards.nctm.org/document/chapter7/data.htm

Box and Whisker Plots are used in reports to describe the distribution of a data set according to percentiles. It helps people understand the range of values for the first 25% of data, the second 25% of data, the third 25% of data, and the fourth 25% of data. For example, the box and whisker plot above suggests that beef franks typically have more calories than poultry (chicken) franks.