For example, a quality engineer creates a dotplot to examine the distribution of the amount of
torque that is required to remove the caps from a sample of shampoo bottles.
Where to find this graph
To create a dotplot, choose .
When to use an alternate graph
If the sample size is 50 or greater, a dot may represent more than one observation. Consider using a boxplot or a histogram in addition to the dotplot so that you can more easily identify primary characteristics of the distribution.