Suppose the scores on an IQ test are normally distributed. If the test has a mean of 100 and a standard deviation of 10, what is the probability that a person who takes the test will score: i. between 90 and 110? i. less than 85? ii. more than 73?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Suppose the scores on an IQ test are normally distributed. If the test has a
mean of 100 and a standard deviation of 10, what is the probability that a
person who takes the test will score:
i.
between 90 and 110?
ii.
less than 85?
i.
more than 73?
Transcribed Image Text:Suppose the scores on an IQ test are normally distributed. If the test has a mean of 100 and a standard deviation of 10, what is the probability that a person who takes the test will score: i. between 90 and 110? ii. less than 85? i. more than 73?
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