Box plots, also called box and whisker plots, are more useful than histograms for comparing distributions. They show more information about the data than do bar charts of a summary statistic such ...

Learn how to calculate the interquartile range from a variety of different data types and draw and interpret box-and-whisker diagrams.

The interquartile range shows the range in values of the central 50% of the data. The data is split into quarters and the middle 50% is analysed. To find the interquartile range, ...