(a) Verify that for every normal pdf, the proportion of
Chapter 7, Problem 42(choose chapter or problem)
(a) Verify that for every normal pdf, the proportion of the population lying within one standard deviation of the mean is close to 68%. !Hint: Since it is the same for every pdf, you can simplify the function by assuming that m ! 0 and s ! 1. Then integrate from "1 to 1."
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