Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.
-Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age.
$\begin{array} { l l l } 52 & 67 & 66 \end{array}$
$\begin{array} { l l l } 52 & 64 & 58 \end{array}$
$\begin{array} { l l l } 59 & 57 & 51 \end{array}$
A) $58.0$
B) $57.2$
C) $58.4$
D) $57.8$

Question

Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.
-Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age. 
$\begin{array} { l l l } 52 & 67 & 66 \end{array}$
$\begin{array} { l l l } 52 & 64 & 58 \end{array}$
$\begin{array} { l l l } 59 & 57 & 51 \end{array}$
A) $58.0$
B) $57.2$
C) $58.4$
D) $57.8$

Quizplus · Accepted Answer

To find the mean retirement age, add all the ages together and divide by the number of employees. The sum of the ages is $52 + 67 + 66 + 52 + 64 + 58 + 59 + 57 + 51 = 526$. Dividing by 9 (the number of employees), the mean age is $526 / 9 = 58.4$.

Find the Mean for the Given Sample Data 526766\begin{array} { l l l } 52 & 67 & 66 \end{array}52​67​66​

Find the Mean for the Given Sample Data $\begin{array} { l l l } 52 & 67 & 66 \end{array}$