Question
In: Statistics and Probability
A company has a policy of retiring company cars; this policy looks at number of miles...
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 55 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 31 and 47 months?
Solutions
Expert Solution
Solution-
Given that
The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 55 months and a standard deviation of 8 months.
By above probability calculation we can say that
approximate 15.73% percentage of cars that remain in service between 31 and 47 months.
68-95-99.7 rule--
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