Asessment Problem Solving Suppose that your estimates of the possible one-year returns from investing in the common stock of the Chaka Corporation were as follows: Probability of occurrence 0.1 0.2 0.4 0.2 0.1 Possible return -10% 5% 20% 35% 50% a. What are the expected return and standard deviation? b. Assume that the parameters that you just determined [under Part (a)] pertain to a normal probability distribution. What is the probability that return will be zero or less? Less than 10 percent? More than 40 percent? (Assume a normal distribution.) Assignment Problem Solving The common stocks of companies A and B have the expected returns and standard deviations given below; the expected correlation coefficient between the two stocks is -0.35. 0.10 0.06 Common Stock A 0.05 Common Stock B 0.04 Compute the risk and return for a portfolio comprising 60 percent invested in the stock of company A and 40 percent invested in the stock of company B.