Question

The following numbers represent the ages of people on a bus.
3, 6, 27, 13, 6, 8, 12, 20, 5, 10.
Calculate their mean of their ages.

• A. 11
• B. 10
• C. 12
• D. 110

Answer 1

The correct option is A 11

First add all the numbers 3 + 6 + 27 + 13 + 6 + 8 + 12 + 20 + 5 + 10 = 110. Then divide by 10 (the number of data provided).
$\therefore \text{Mean}=\frac{110}{10}=11$