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 .22 .30 Stock B .42 Stock C .58 .46 .23 .21 .19 Bust .32 .01 -.22 -.50 es a-1. If your portfolio is invested 25 percent each in A and B and 50 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.) b. 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.) If the expected T-bill rate is 4.30 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 3.90 percent, what are the approximate and exact expected real returns on the portfolio? (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) c-2. What are the approximate and exact expected real risk premiums on the portfolio? (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places. e.a.. 32.16.)