Question 3 (Mandatory) (7 points) I Saved According to Investment Digest ("Diversification and the Risk/Reward Relationship Winter 1994/1-3), the mean of the annual return for common stocks from 1926 t 1992 was 16.5%, and the standard deviation of the annual return was 19%. a. What is the probability that the stock returns are greater than 0%? b. What is the probability that the stock returns are less than 18%? What is the area between the mean and our actual score? 0.408 in part a, 0.319 in part b O 0.408 in part a, 0.039 in part b O 0.308 in part alf.039 in part b . 0.308 in part a, 0.032 in part b D View hint for Question 3