Question

Which of the following best describes the change in the mean when 1213 is

Answer 1

A

Explanation:

The mean is the sum of all the values divided by the number of values.

Mean =
`(34+75+26+81+65+38+49)/(7)=52.57`

When 1213 is added to the data set, new mean is:

New Mean =
`(34+75+26+81+65+38+49+1213)/(8)=197.625`

Definitely, the mean increases. Correct answer is A