The average age of the seven P.E. teachers at Carl's

Petrovcic2x

Petrovcic2x

Answered question

2022-06-19

The average age of the seven P.E. teachers at Carl's school is 38. If the ages of six of them are 52, 30, 23, 28, 44, and 45, what is the age of the seventh teacher?

Answer & Explanation

Braylon Perez

Braylon Perez

Beginner2022-06-20Added 34 answers

To calculate a mean of a set of data, add up all of the data and divide by the number of items of data.
Let the age of the seventh teach be x.
With that, the average of the teachers ages is calculated by:
52 + 30 + 23 + 28 + 44 + 45 + x 7 = 38
Then we can multiply through by 7 to get:
52 + 30 + 23 + 28 + 44 + 45 + x 7 × 7 = 38 × 7
52 + 30 + 23 + 28 + 44 + 45 + x = 266
The we subtract all of the other ages to get:
x=266-52-30-23-28-44-45=44

Do you have a similar question?

Recalculate according to your conditions!

New Questions in College Statistics

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?