If the average age of retirement for the entire population in a country is 60 years and the distribution is normal with a standard deviation of 4.5 years, what is the approximate age range in which 95% of people retire?   A. 50 to 62 years old B. 51 to 69 years old C. 45 to 55 years old

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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If the average age of retirement for the entire population in a country is 60 years and the distribution is normal with a standard deviation of 4.5 years, what is the approximate age range in which 95% of people retire?

 

A. 50 to 62 years old

B. 51 to 69 years old

C. 45 to 55 years old

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