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5) IQ scores are Normally distributed with a mean of 100 and a standard deviation of 15. What percent of IQ scores are a) under 109? b) between 79 and 106? c) over 112?

5) IQ scores are Normally distributed with a mean of 100 and a standard deviation of 15. What percent of IQ scores are a) under 109? b) between 79 and 106? c) over 112?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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5) IQ scores are Normally distributed with a mean of 100 and a standard deviation of 15. What percent of IQ scores are a) under 109? b) between 79 and 106? c) over 112?
Transcribed Image Text:5) IQ scores are Normally distributed with a mean of 100 and a standard deviation of 15. What percent of IQ scores are a) under 109? b) between 79 and 106? c) over 112?
Expert Solution
Step 1: determine the given variable

Mean=100

Standard deviation=15

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