Definition:Box-and-Whisker Diagram

Definition
A box-and-whisker diagram is a graphical representation of the information contained in a five-number summary.

Whiskers
By presenting more than one such plot next to each other in the same diagram, it is then possible to see major differences between their characteristics.



The diagram above shows two such box-and-whisker diagrams, illustrating samples with the five-number summaries:


 * $(1): \quad 2 \quad 17 \quad 23 \quad 49 \quad 71$


 * $(2): \quad 6 \quad 11 \quad 25 \quad 56 \quad 93$