Problem 11-22 Portfollo Returns and Devlations Consider the following information on three stocks: Rate of Return If State Occurs Probability of State of State Economy of Economy Stock A Stock B Stock C Boom .20 .26 .38 .50 Normal 50 .10 .06 Bust .30 .01 - 20 -.40 .08 4-1 If your portfolio is invested 30 percent each in A and B and 40 percent in C, what is the portfolio expected return? (Do not round Intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e..., 32,16.) Portfolio expected return 4-2 What is the variance? (Do not round Intermediate calculation and round your answer to decimal placer, e.0., 32.10161) Variance 2-3 What is the standard deviation? (Do not round Intermediate calculations. Enter your answer or a percent rounded to 2 decimal places, e.g., 32.18.) Standard deviation b. If the expected T-bill rate is 3.00 percent, what is the expected risk premium on the portfolio? (Do not round Intermediate calculations, Enter your answer as a percent rounded to 2 decimal places, .0. 32.10.) Expected risk premium c1f the expected inflation rate is 260 percent, what are the approximate and exact expected real returns on the portfolio? (Do not round Intermediate calculations, Enter your answer or a percent rounded to 2 decimal places, c.9. 32.10.) 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. Enter your answers as a percent rounded to 2 decimal places, e.o. 32.10.) Approximate expected real risk premium Exact expected real risk premium %