# Normal Distribution

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. Find a percentage for an interval [Lower, Upper]
1. Check the box.
2. Input the Lower Bound
3. Input the Upper Bound
4. 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, , this will return the following:
• 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.