heights of men on a baseball team have a bell shaped distribution with a mean of 172 cm and a distribution of 9cm. Using the empirical rule, what is the approximate percentage of the men between the following values?

Question

a. ___% of the men are between 145cm and 199cm
b.___% of the men are between 154cm and 190cm

Answer 1

I think you mean standard deviation of 9

http://davidmlane.com/hyperstat/z_table.html