According to Investment Digest(Diversification and the Risk/Reward; Winter 1994 1-3), the mean of the annual return for common stocks from 1926 to 1992 was 16.5%, and the standard deviation of the annual return was 19%.

In later parts of the question we will ask:

a. What is the probability that the stock return are greater than 0%?

b. What is the probability that the stock returns are less than 18%?

For this part, answer the following question:

Which table will we use to find the area under the normal curve?

A. F-table

B. Z-table

C. K-table

D. T-table