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9. The 68-95-99.7 Rule. A set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the percentage of scores in each of the following categories. a. greater than 100 c. less than 80 b. greater than 120 d. less than 140

9. The 68-95-99.7 Rule. A set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the percentage of scores in each of the following categories. a. greater than 100 c. less than 80 b. greater than 120 d. less than 140

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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6C: 19. The 68-95-99.7 Rule. A set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the percentage of scores in each of the following categories. a. greater than 100 c. less than 80 e. less than 60 g. greater than 80 b. greater than 120 d. less than 140 f. less than 120 h. between 80 and 120
Transcribed Image Text:6C: 19. The 68-95-99.7 Rule. A set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the percentage of scores in each of the following categories. a. greater than 100 c. less than 80 e. less than 60 g. greater than 80 b. greater than 120 d. less than 140 f. less than 120 h. between 80 and 120
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