I've used this worksheet in going over normal distribution problems in my Algebra II class. It includes notes on the normal distribution, z-score, empirical rule, and basic properties of the normal distribution. It then includes 3 problems where they use the empirical rule to estimate the shaded region from a picture. Then 3 problems where they select the regions to give a desired area. A word problem using normal distribution. The second side contains 6 problems where they must calculate the area from the z-scores, 6 problems calculating the area from raw scores, and 6 problems calculating the number of students with certain scores.