3. (14\%) A pension fund manager is considering three mutual funds. The first is a stock fund, the second is a long-term government and corporate bond fund, and the third is a Tbill money market fund that yields a sure rate of 5%. The probability distributions of the risky funds are: Aik tvisiahv uctrech me sung icturis is v.1 a. (7%) What are the expected return and standard deviation of the optimal risky portfolio? b. (2\%) What is the reward-to-volatility ratio of the best feasible CAL? c. (5\%) Suppose now that your portfolio must yield an expected return of 10% and be efficient, that is, on the best feasible CAL. What is the standard deviation of your portfolio? What is the proportion invested in the T-bill fund and each of the two risky funds