Question

malek was celebrating his birthday. as each person entered, he recorded their age. the list below shows the ages (in years) of the people at the party. calculate the mean age of the people. round your answer to the nearest tenth of a year.
ages
9
9
9
15
15
14
69
51

Explanation:

Step1: Find sum of ages

$9 + 9+9 + 15+15 + 14+69+51=191$

Step2: Count number of people

There are 8 people.

Step3: Calculate the mean

The mean $\bar{x}=\frac{191}{8}=23.875$

Step4: Round the result

Rounding $23.875$ to the nearest tenth gives $23.9$

Answer:

$23.9$