Question

The ages, in years, of randomly selected employees are 34,41,28,35,27,44,48,29,33, 39
Determine the mean age.
35.8
36.8
39.8
37.8

Answer 1

To find the mean age of the employees, we first add all the ages together and then divide by the number of employees.

The ages are: 34, 41, 28, 35, 27, 44, 48, 29, 33, 39.

First, calculate the total sum of the ages:

\[
34 + 41 + 28 + 35 + 27 + 44 + 48 + 29 + 33 + 39 = 34 + 41 = 75
\]
\[
75 + 28 = 103
\]
\[
103 + 35 = 138
\]
\[
138 + 27 = 165
\]
\[
165 + 44 = 209
\]
\[
209 + 48 = 257
\]
\[
257 + 29 = 286
\]
\[
286 + 33 = 319
\]
\[
319 + 39 = 358
\]

The total sum of the ages is 358.

Now, divide the total sum by the number of employees (which is 10):

\[
\text{Mean} = \frac{358}{10} = 35.8
\]

Therefore, the mean age is **35.8**.