JMP Tutorial:
Histogram

Click the link below and save the following JMP file to your Desktop:

Unemployment Rates by State 2000

Now go to your Desktop and double click on the JMP file you just downloaded.
This action will start JMP and display the content of this file:

Go to the Analyze menu and select Distribution:

You will see the following dialog box:

Click the Percent column , then click the Y, Columns box:

Click OK:

Click on the red down arrow next to Percent, select Display Option, then Horizontal Layout:

You should see the following:

Click once again on the red arrow next to Percent, select Histogram Options, then Count Axis:

You should see the following:

You can also add relative frequency to the y-axis.
Click the red arrow next to Percent, select Histogram Options, then Prob Axis.
You should see the following:

If you don't want both the count axis and the relative frequency axis displayed, uncheck the Count Axis option (red arrow, Histogram Options, Count Axis):

Changing the Number of Bins and Class Boundaries

Go to the Tools menu and select the Grabber tool:

Place the Grabber cursor on top of the histogram bars and click and drag - up and down and side to side - to see the histogram change class boundaries.
As an example, using this method, you can produce the following histogram:

If you plan to continue using JMP, go to the Tools menu and select the default Arrow tool:

(Based on JMP Pro 16.0.0   Updated 7/5/2021)