Three men were trying to make the football team as punters. the coach

Three men were trying to make the football team as punters. The coach had each of them punt the ball 50 times. The distance of each punt is recorded in columns 1,2, and 3in file Xr04-33

a) Compute the variance and standard deviation or each punter.
b) What do these statistics tell you about the punter? Detailed information.