Use the following information to answer questions 4 through 7: State Boom Normal Bust Prob 0.35 0.30 0.35 RRB 36% 25 -18% 14 28 ???--0. 951 9 4. Calculate the expected returns on assets A and B. 5. Calculate the expected return on a portfolio. P invested 60% in A and 40% in B. 6. Calculate the standard deviations of assets A and B. 7. Calculate the standard deviation of portfolio, P in question 5 above