Problem 11-22 Portfolio Returns and Deviations Consider the following information about three stocks: Rate of Return if State Occurs State of Probability of Economy State of Economy Stock A Stock B Stock C Boom .30 .20 .25 .60 Normal .45 .15 .11 .05 Bust .25 .01 .15 .50 a-1. If your portfolio is invested 40 percent each in A and B and 20 percent in C , what is the portfolio expected return? (Do not round intermediate calculations and round your answer to 2 decimal places. (e.g., 32.16)) Portfolio expected return % a-2. What is the variance? (Do not round intermediate calculations and round your final answer to 5 decimal places. (e.g., 32.16161)) Variance a-3. What is the standard deviation? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Standard deviation % b. If the expected T-bill rate is 3.80 percent, what is the expected risk premium on the portfolio? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Expected risk premium % c-1. If the expected inflation rate is 3.50 percent, what are the approximate and exact expected real returns on the portfolio? (Do not round intermediate calculations and round your answers to 2 decimal places. (e.g., 32.16)) Approximate expected real return % Exact expected real return % c-2. What are the approximate and exact expected real risk premiums on the portfolio? (Do not round intermediate calculations and round your answers to 2 decimal places. (e.g., 32.16)) Approximate expected real risk premium % Exact expected real risk premium %