Out of 2000 randomly selected people, about how many would you expect to have IQ scores less

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Out of 2000 randomly selected people, about how many would you expect to have IQ scores less than 90 ?

In a standardized IQ test, scores are normally distributed, with a mean score of 100 and a standardized deviation of 15.

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Elementary Statistics Picturing The World

ISBN: 9781292260464

7th Global Edition

Authors: Betsy Farber, Ron Larson

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