A population of N = 7 scores has a mean of$\mu$ = 10.If one score with a value of X = 4 is removed from the population,what is the value for the new mean?

Question

Quizplus · Accepted Answer

The sum of the original population was 7*10 = 70. When the score of X=4 is removed, the sum becomes 66. The new mean is then 66/6 = 11, since there are now only 6 scores in the population. Therefore, the correct answer is C, 66/6 = 11.

A Population of N = 7 Scores Has a Mean μ\muμ

A Population of N = 7 Scores Has a Mean $\mu$