2.4

Box Plots

Give a good graphical image of the concentration of the data.

Constructed from five values: minimum value, first quartile, the median, third quartile, maximum value

Box-and-whisker plots or box-whisker plots)

Construct

Use a horizontal or vertical number line and a rectangular box

The smallest and largest data values label the endpoints of the axi

The first quartile marks one end of the box

The third quartile marks the other end of the box.

The "whiskers" extend from the ends of the box to the smallest and largest data values