A sample has a mean of M = 86.If one new person is added to the sample,what effect will it have on the sample mean?
A)The sample mean will increase.
B)The sample mean will decrease.
C)The sample mean will remain the same.
D)Cannot be determined from the information given

Question

Quizplus · Accepted Answer

The effect on the sample mean depends on the value of the new person's score relative to the current mean. Without knowing this value, it's impossible to determine the effect on the mean.

A Sample Has a Mean of M = 86