JMP Tutorial:
Calculating Numerical Summaries of Quantitative Data

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.  Scroll down to see the summary statistics.