Problem 11-25 Portfolio Returns and Deviations [LO 1, 2] Consider the following information on a portfolio of three stocks: State of Probability of Stock A Rate of Economy State of Economy Return Boom Normal Bust .12 .53 .35 .09 Stock B Rate of Return .34 Stock C Rate of Return .53 .17 .18 .19 -.18 .27 -.37 a. If your portfolio is invested 36 percent each in A and B and 28 percent in C, what is the portfolio's expected return, the variance, and the standard deviation? Note: Do not round intermediate calculations. Round your variance answer to 5 decimal places, e.g., .16161. Enter your other answers as a percent rounded to 2 decimal places, e.g., 32.16. b. If the expected T-bill rate is 4.1 percent, what is the expected risk premium on the portfolio? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. a. Expected return Variance % Standard deviation % b. Expected risk premium %