Normal Distribution
Set up
Normal distribution
Mathematica Summary
Normal distribution probabilities from z-scores.
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Table D-4 in the text says that the probability for z ≤ -2.58 is 0.0049. You get those numbers with these functions like this:
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Using the Error Function (Erf) Instead
Excel, TI-83
Created by Mathematica (October 2, 2003)