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Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 13. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 61 and 139? (b) What percentage of people has an IQ score less than 74 or greater than 126? (c) What percentage of people has an IQ score greater than 139? (a) (b) (c) % (Type an integer or a decimal.) % (Type an integer or a decimal.) % (Type an integer or a decimal.)

Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 13. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 61 and 139? (b) What percentage of people has an IQ score less than 74 or greater than 126? (c) What percentage of people has an IQ score greater than 139? (a) (b) (c) % (Type an integer or a decimal.) % (Type an integer or a decimal.) % (Type an integer or a decimal.)

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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Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 13. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 61 and 139? (b) What percentage of people has an IQ score less than 74 or greater than 126? (c) What percentage of people has an IQ score greater than 139? (a) % (Type an integer or a decimal.) (b) % (Type an integer or a decimal.) (c) ■% (Type an integer or a decimal.)
Transcribed Image Text:Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 13. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 61 and 139? (b) What percentage of people has an IQ score less than 74 or greater than 126? (c) What percentage of people has an IQ score greater than 139? (a) % (Type an integer or a decimal.) (b) % (Type an integer or a decimal.) (c) ■% (Type an integer or a decimal.)
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