Assuming that the heights of college women are normally distributed with mean 66 inches and standard deviation 2 inches, what percentage of women are shorter than 72 inches?
Statistics - MathGuru, Thursday, May 2, 2013 at 6:37pm
z = (x - mean)/sd
x = 72
mean = 66
sd = 2
Calculate the z-score, then check a z-table for your probability (remember the question is asking "what percentage of women are shorter than 72 inches" when looking at the table).