Question

A sample of n=6 scores has a mean of M = 10. One new score is added to the sample and the new mean is

computed to be M = 11. What is the value of the score that was added to the sample?

Answer 1

the value is 11

Step-by-step explanation:

since mean is calculated n/6 = 10, find n by doing 10 * 6 = 60.

n/7 = 11, find n by doing 11*7 = 77.

Subtract 77 - 60 = 11.

Therefore, the value that was added is 11.