Question

Find the mean for the given set of data.

18, 15, 22, 18, 25, 19, 23

a)18
b)19
c)20

Answer 1

C. 20. When you add them all up and divide by seven, you get 20

Answer 2

Option c - 20

Explanation:

Given : The set of data

18, 15, 22, 18, 25, 19, 23

To find: The mean of the data?

Solution :

Mean is defined as the sum of the number of observation by total number of observation.

`M=(\sum x_n)/(n)`

`M=(18+15+22+18+25+19+23)/(7)`

`M=(140)/(7)`

`M=20`

Therefore, The mean of the data is 20.

So, Option c is correct.