- Press the Y= key.
- Press 2nd VARS to get to the DISTR menu.
- Select normalpdf and press ENTER.
- Press the X key.
- Press the comma key.
- Input the desired mean.
- Press the comma key.
- Input the desired standard deviation.
- Press the ) key.
- Press the WINDOW key.
- Set Xmin µ-3σ to and Xmax to µ+3σ .
- Press the ZOOM key.
- Press the down arrow key until ZoomFit is highlighted and press ENTER.
- The calculator should now display the desired graph.
Old Operating System Manual