A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose oftrips, style of car and other features. The distribution of the number of months in service for the fleet ofcars is bell-shaped and has a mean of 61 months and a standard deviation of 6 months. Using the 68-95-99.7 (Empirical) Rule, what is the approximate percentage of cars that remain in service between 73 and79 months?The approximate percentage of cars that remain in service between 73 and 79 months isDo not enter the percent symbol.)%.

The mean is 61 and standard deviation is 6.The distribution of the number of months in service for…

Answered: A company has a policy of retiring…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Similar questions

Assuming that the heights of college women are normally distributed with a mean of 62 inches and standard deviations 3.5 inches, what percentage of woman are taller than 62 inches?
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A company conducted a survey on the number of hours employees spend on a particular task per week. The data collected from a sample of 10 employees are as follows: 5, 6, 7, 8, 9, 10, 10, 11, 12, 13. Calculate the standard deviation of the hours spent on the task per week.
The income of trainess at a local mill are normally distributed with a mean of $1100 and a standard deviation of $150. What percentage of trainees earn less than $900 a month?
The distribution of heights of adult American men is approximately normal with a mean of 69 inches and a standard deviation of 2.5 inches. a. What percent of these men are at least 71.5 inches tall? b. What percent of these men are between 64 and 74 inches tall?
The typical amount of sleep per night for college graduate students has a normal distribution with a mean of 5 hours. What is the standard deviation of this distribution if 16% of students sleep more than 6.5 hours? A. -1.52 B. -1.55 C. 1.52 D. 1.55
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The providence health maintenance organization wants to establish a criterion for recommending dietary changes if cholesterol levels are in the top 3%. What is the cutoff level for men aged 18 to 24 and the mean is 178.1 and the standard deviation is 40.7
The following data represent the number of people aged 25 to 64 years covered by health insurance (private or government) in 2018. Approximate the mean and standard deviation for age. Age Number (millions) 25-34 35-44 45-54 55-64 23.2 36.4 35.4 21.6 (Type an integer or decimal rounded to two decimal places as needed.) (Type an integer or decimal rounded to two decimal places as needed.)
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