# Normal Distribution

- Author:
- Brian Sterr

This sketch shows the normal curve 4 standard deviations above and below the mean: .
You can change the Mean and Standard Deviation, which will relabel the x-axis. In reality, the curve would also be dilated and translated, but this sketch fixes the relative shape.
, this will return the following:

**Find a percentage for an interval [Lower, Upper]**- Check the box.
- Input the Lower Bound
- Input the Upper Bound
- The area under the curve will be highlighted and the percentage of values in this interval will be shown.

**Inverse Normal**Given a fixed percentage,- Left Tail:
such that of the values are to the left of it. - Center:
such that of the values are in this interval centered at . - Right Tail:
such that of the values are to the right of it.