A particular group of men have heights with a mean of 177 cm and a standard deviation of 8 cm. Charley had a height of 192 cm.

a.What is the positive difference between Charley's height and the mean?

b.How many standard deviations is that[the difference found in part(a)]?

c. Convert Charley's height to a z score.

d. If we consider "usual" heights to be those that convert to z scores between -2 and 2, is Charley's height usual or unusual?

The positive difference between Charley's height and the mean is?? cm.