Statistics
posted by RainbowGlitter .
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?

Try zscores:
z = (x  mean)/sd
x = 72
mean = 66
sd = 2
Calculate the zscore, then check a ztable for your probability (remember the question is asking "what percentage of women are shorter than 72 inches" when looking at the table).