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The normal PDF for the graph plots in the work area. The expression used
to calculate the PDF displays when selected.
You can click Hide Normal PDF on the Analyze menu to remove the PDF.
Using Shade Under Function
Use Shade Under Function to find the area of a selected region under a
function graphed in the work area.
1. Select any function graphed in the Data&Statistics work area. For
example, select a previously graphed normal PDF.
2. From the Analyze menu, click Shade Under Function.
The pointer becomes a dotted vertical line and the boundary +/- ˆ displays
when you position the mouse near the boundary on the left or right. You
can click when ˆ displays to set it as a boundary.
Data&Statistics Application 395