statistics
posted by Anonymous .
Suppose that the heights of adult men in the United States are normally distributed with a mean of inches and a standard deviation of inches. What proportion of the adult men in United States are more than feet tall? (Hint: feet inches.) Round your answer to at least four decimal places.

find the zscore:
z=(xmu)/sigma
where mu= mean and sigma=standard deviation
after you find the zscore, you need to look at the zscore chart for the proportion
http://www.thebeststatistics.info/sta/table_zvals.html