Consider the following information about three stocks Rate of Return If State Occurs State of Economy Boom Normal Bust Probability of State of Economy Stock A Stock C 30 .40 30 .27 23 01 Stock B 32 18 15 -48 -.32 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. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Portfolio expected return 11.54 % a-2 What is the variance? (Do not round intermediate calculations and round your answer to 5 decimal places, e.g., 32.16161.) Variance a-3 What is the standard deviation? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Standard deviation b. If the expected T-bill rate is 4.90 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 e.g, 32.16.) Expected risk premium