Based on the Normal model N(100, 16) describing IQ scores, what percent of people's IQs would you

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Based on the Normal model N(100, 16) describing IQ scores, what percent of people's IQs would you expect to be
a) Over 80?
b) Under 90?
c) Between 112 and 132?
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Stats Data and Models

ISBN: 978-0321986498

4th edition

Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock

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