1. A company has a policy of retiring company cars; this policy looks at 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 46 months and a standard deviation of 9 months. Using the 68-95- 99.7 (Empirical) Rule, what is the approximate percentage of cars that remain in service between 55 and 73 months? The approximate percentage of cars that remain in service between 55 and 73 months is %. Do not enter the percent symbol.)
1. A company has a policy of retiring company cars; this policy looks at 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 46 months and a standard deviation of 9 months. Using the 68-95- 99.7 (Empirical) Rule, what is the approximate percentage of cars that remain in service between 55 and 73 months? The approximate percentage of cars that remain in service between 55 and 73 months is %. Do not enter the percent symbol.)
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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Transcribed Image Text:1.
A company has a policy of retiring company cars; this policy looks at 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 46 months and a standard deviation of 9 months. Using the 68-95-
99.7 (Empirical) Rule, what is the approximate percentage of cars that remain in service between 55 and
73 months?
The approximate percentage of cars that remain in service between 55 and 73 months is
%. Do not
enter the percent symbol.)
2.
The physical plant at the main campus of a large state university recieves daily requests to replace
florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 41
and a standard deviation of 11. Using the 68-95-99.7 (Empirical) Rule, what is the approximate percentage
of lightbulb replacement requests numbering between 41 and 74?
The approximate percentage of lightbulb replacement requests numbering between 41 and 74 is
%. (Do not enter the percent symbol.)
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