Problem 11-25 Portfolio Returns and Deviations [LO 2] Consider the following information on a portfolio of three stocks: State of Economy Probability of State of Economy Stock A Rate of Return Stock B Rate of Return Stock C Rate of Return Boom .15 .10 .35 .52 Normal .52 .18 .20 .28 Bust .33 .19 .19 .38 Required: (a) If your portfolio is invested 42 percent each in A and B and 16 percent in C, what is the portfolios expected return, the variance, and the standard deviation? (Do not round intermediate calculations. Round your variance answer to 5 decimal places (e.g., 32.16161) and input your other answers as a percentage rounded to 2 decimal places (e.g., 32.16).) Expected return % Variance Standard deviation % (b) If the expected T-bill rate is 4.15 percent, what is the expected risk premium on the portfolio? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).) Expected risk premium %