Problem 13-23 Portfolio Returns and Deviations [LO2] Consider the following information about three stocks: Rate of Return if State Occurs Probability of State State of Economy Boom Normal of Economy Stock A Stock B Stock C .25 .36 .48 .52 .44 .20 .15 .12 Bust .31 .04 -.26 -.44 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 enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) a-2. What is the variance? (Do not round intermediate calculations and round your answer to 5 decimal places, e.g., .16161.) a-3. What is the standard deviation? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. If the expected T-bill rate is 4.60 percent, what is the expected risk premium on the portfolio? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) c-1. If the expected inflation rate is 4.10 percent, what are the approximate and exact evnected real returns on the nortfolio? Do not round intermediate calculations