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 z-score:
where mu= mean and sigma=standard deviation
after you find the z-score, you need to look at the z-score chart for the proportion