Question

A friend tells you about a recent study dealing with the number of years of teaching experience among current college professors. he remembers the mean but cannot recall whether the standard deviation was 6​ months, 6​ years, or 16 years. tell him which one it must have​ been, and why.

Answer 1

I would tell him it must have been 6 years, as most college professors have had prior teaching experience and at least possess a Master's degree. Six months would be far too small of an average and 16 years may also be the answer, but going for the middle number would be a safe bet.