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Box and Whisker Plots
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Box and Whisker Plots

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Box and Whisker Plots

Box and Whisker plots summarise the key statistical values in a single diagram. They include quartiles, the median and the interquartile range.

A box and whisker plot is a statistical diagram that summarises a data set in five key values: the lowest value, the lower quartile, the median, the upper quartile and the highest value.

1

The 'whiskers' represent the largest and smallest values

The whiskers are the vertical lines at each end of the diagram.

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2

The box contains multiple values

The outer edges of the box represent the lower and upper quartiles. Therefore, the box represents the middle 50% of the dataset. The line inside the box represents the median.

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What do the ends of the whiskers in a box and whisker plot represent?

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What does the line inside the "box" represent in a box and whisker plot?

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