Math
posted by Help please! .
What is the difference between the height of the tallest man at 92.95" and the mean height of men at 69.6" and a stanard deviation of 2.8?
How many standard deviations is that?
Convert tallest man to a z score
Does tall mans height meet the criterion of being unusual by corresponding to a z score that does not fall between 2 and 2?

Z score is the score in terms of standard deviations.
Z = (scoremean)/SD
Z = (92.9569.6)/2.8
Solve for Z.