Question: What proportion of the z distribution is between -2 and 2?
- In Minitab select Graph > Probability Distribution Plot > One Curve > View Probability, hit OK.
- Select Normal and enter 0 for the mean and 1 for the standard deviation.(Note: The default is the standard normal distribution)
- Select Options
- Select A specified x value
- Select Middle and enter
- X value 1: -2
- X value 2: 2
- Select OK
The proportion of the z distributions that falls between -2 and 2 is 0.9545.