Hi there,

I am looking for help in understanding these numbers, please.

I have 20 test scores that come out with a mean = 73, median = 70, and standard deviation = 15.9.

Do these numbers look normal for testing assessment? I understand that the mean and median have average scores, so an average assessment. What about the standard deviation, is that normal? For some reason that seems high.

Any help in understanding these numbers is appreciated, thanks