Scores of the Wechsler IQ test have a mean of 100 and standa

Scores of the Wechsler IQ test have a mean of 100 and standard deviation of 15. You choose and SRS of 25 students and average thier test scores. If you do this many times, what will the mean of the average scores you get be close to?

A. 20

B. 40

C. 100

D. 115

Solution

Using central theorem ,the mean of the average scores is equal to the average scores is equal to population mean

Thus,c.100 is the right answer