b) The American Automobile Association reports that the average time it takes to respond to an emergency call is 38 minutes. Assume the variable is approximately normally distributed and the standard deviation is 9.002 minutes. If 80 calls are randomly selected, approximately how many will be responded to in less than 15 minutes? How many will be responded to in 50 percent? How many will be 100 percent?
b) The American Automobile Association reports that the average time it takes to respond to an emergency call is 38 minutes. Assume the variable is approximately normally distributed and the standard deviation is 9.002 minutes. If 80 calls are randomly selected, approximately how many will be responded to in less than 15 minutes? How many will be responded to in 50 percent? How many will be 100 percent?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter5: Rational Numbers And Equations
Section5.5: Dividing Fractions
Problem 50E
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