A company has a policy of retiring company cars.This policy looks at a number of miles driven, purpose of trips, style of car, and other features.  The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 53 months and a standard deviation of 8 months.  Using the 68-95-99.7 rule, what is the approximate percentage of cars that remain in service between 61 and 69 months?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A company has a policy of retiring company cars.This policy looks at a number of miles driven, purpose of trips, style of car, and other features.  The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 53 months and a standard deviation of 8 months.  Using the 68-95-99.7 rule, what is the approximate percentage of cars that remain in service between 61 and 69 months?

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