Question 14 An IQ score has a mean, µ = 90, and standard deviation, o = 10. (5PTS EACH) 1. A genius is sometimes characterized as a person with an IQ score of 140 or above. What fraction of the population scores at the genius leve!? 2. What would the IQ score correspond to the 99th percentile?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Question 14
An IQ score has a mean, µ = 90, and
standard deviation, o = 10. (5PTS
EACH)
1. A genius is sometimes characterized
as a person with an IQ score of 140
or above. What fraction of the
population scores at the genius
leve!?
2. What would the IQ score
correspond to the 99th percentile?
Transcribed Image Text:Question 14 An IQ score has a mean, µ = 90, and standard deviation, o = 10. (5PTS EACH) 1. A genius is sometimes characterized as a person with an IQ score of 140 or above. What fraction of the population scores at the genius leve!? 2. What would the IQ score correspond to the 99th percentile?
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