IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Mensa

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IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Mensa is an organization for people with high IQs, and eligibility requires an IQ above 131.5.
a. If someone is randomly selected, find the probability that he or she meets the Mensa requirement.
b. In a typical region of 75,000 people, how many are eligible for Mensa?
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Elementary Statistics

ISBN: 9780321225979

3rd Canadian Edition

Authors: Mario F. Triola

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