A variable is normally distributed with mean 15 and standard deviation 4. Find the percentage of all

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A variable is normally distributed with mean 15 and standard deviation 4. Find the percentage of all possible values of the variable that

a. lie between 9 and 12.

b. are at least 16.

c. are at most 20.

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Introductory Statistics

ISBN: 9781292099729

10th Global Edition

Authors: Neil A. Weiss

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