Question

Gina is a tour boat operator and she wants to know the mean age of all the people in her tour group.

She randomly selects 8 people in the group and asks them for their ages. Their responses are 19, 27, 25, 21, 44, 22, 45, and 34.

What is the best estimate of the mean age of all the people in the tour group?



Round to the nearest whole number.

Enter your answer in the box.

___ years

Answer 1

30

Explanation:

The population mean can be estimated with the sample average, so add up all the ages and divide by how many there are.

(19 + 27 + 25 + 21 + 44 + 22 + 45 + 34) / 8

29.625

Rounded to the nearest whole number, the average age is 30.