7.2.3.1 - Video Example: Proportion Between z -2 and +2

Question: What proportion of the z distribution is between -2 and 2?

Steps
  1. On a PC: from the menu select STATISTICS > Distribution Plot
    On a Mac: from the menu select Statistics > Probability Distributions > Distribution Plot
  2. Select Display Probability (Note: The default is the standard normal distribution)
  3. Select A specified X value
  4. Select Middle
  5. For X value 1 enter -2 and for X value 2 enter 2