Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 10. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 90 and 110? (b) What percentage of people has an IQ score less than 80 or greater than 120? (c) What percentage of people has an IQ score greater than 110?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 10. Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 90 and 110? (b) What percentage of people has an IQ score less than 80 or greater than 120? (c) What percentage of people has an IQ score greater than 110?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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