1.
Select Help > Sample Data Library and open Students.jmp.
2.
Select Graph > Legacy > Chart.
3.
Select height and click Statistics.
4.
Select Mean from the menu of statistics.
5.
Select age and click Categories, X, Levels.
Figure 13.2 The Completed Chart Launch Window
6.
Figure 13.3 Mean of height by age
7.
The Chart launch window appears, already filled out for you. If you clicked OK now, you would see a duplicate of the chart you already have.
9.
Select sex and click Grouping.
10.
Figure 13.4 Mean of height by age and Grouped by sex

Help created on 10/11/2018