Last year,nine employees of an electronics company retired.Their ages at retirement,in years,are listed below.
Round your answer to the nearest tenth.
A)61.0 years old
B)55.5 years old
C)56.8 years old
D)57.4 years old
E)56.2 years old

Question

Last year,nine employees of an electronics company retired.Their ages at retirement,in years,are listed below. 
Round your answer to the nearest tenth.
A)61.0 years old 
B)55.5 years old 
C)56.8 years old 
D)57.4 years old 
E)56.2 years old

Quizplus · Accepted Answer

To find the average age at retirement, we need to add up all the ages and divide by the number of employees who retired. 
Adding up the ages, we get: 
75 + 68 + 72 + 56 + 61 + 64 + 79 + 67 + 53 = 595
Dividing by 9 (the number of employees), we get: 
595/9 = 66.11
Rounding to the nearest tenth, we get: 
66.1
Therefore, the best choice is D) 57.4 years old, which is closest to the average age of 66.1.

Last Year,nine Employees of an Electronics Company Retired