Question

A group of people participated in a movie preview and the ages of the people who liked the movie were recorded. Find the mean of the ages.
34 37 43 26 33 28 50 44 31 34
1)36
2)34
3)38
4)37

Answer 1

To find the mean of the ages, we need to sum all the ages and then divide by the number of ages.

The ages provided are:
34, 37, 43, 26, 33, 28, 50, 44, 31, 34

First, we calculate the sum of these ages:

\[
34 + 37 + 43 + 26 + 33 + 28 + 50 + 44 + 31 + 34
\]

Calculating step-by-step:

- \(34 + 37 = 71\)
- \(71 + 43 = 114\)
- \(114 + 26 = 140\)
- \(140 + 33 = 173\)
- \(173 + 28 = 201\)
- \(201 + 50 = 251\)
- \(251 + 44 = 295\)
- \(295 + 31 = 326\)
- \(326 + 34 = 360\)

So, the total sum of the ages is 360.

Next, we divide this sum by the number of ages, which is 10:

\[
\text{Mean} = \frac{360}{10} = 36
\]

Therefore, the mean of the ages is **36**.

The correct answer is: **1) 36**.