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Suppose 450 test scores are normally distributed with mean 73.7 and standard deviation 2.5. a. How many test scores are within one standard deviation of the mean? Give your answer as a number, not as a percentage. b. What are the highest and lowest of those scores?

Suppose 450 test scores are normally distributed with mean 73.7 and standard deviation 2.5. a. How many test scores are within one standard deviation of the mean? Give your answer as a number, not as a percentage. b. What are the highest and lowest of those scores?

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
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Suppose 450 test scores are normally distributed with mean 73.7 and standard deviation 2.5. a. How many test scores are within one standard deviation of the mean? Give your answer as a number, not as a percentage. b. What are the highest and lowest of those scores?
Transcribed Image Text:Suppose 450 test scores are normally distributed with mean 73.7 and standard deviation 2.5. a. How many test scores are within one standard deviation of the mean? Give your answer as a number, not as a percentage. b. What are the highest and lowest of those scores?
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