Use Boxplot to assess and compare the shape, central tendency, and variability of sample distributions, and to look for outliers. A boxplot works best when the sample size is at least 20. By default, a boxplot shows the median, interquartile range, range, and outliers for each group.

For example, a scientist creates a boxplot to compare the height of plants grown with two different fertilizers and a control group with no fertilizer.

Where to find this graph

To create a boxplot, choose Graph > Boxplot.

When to use an alternate graph

If the sample size is less than 20, consider using an Individual value plot instead.

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