Question 4 (20 points) Saved Suppose the expected returns and standard deviations of Stocks A and B are E(Ra) = .094, E(RB) = .154,0A = 364, and og = .624. a.) Calculate the expected return of a portfolio that is composed of 39 percent A and 61 percent B when the correlation between the returns on A and B is.54. b.) Calculate the standard deviation of a portfolio that is composed of 39 percent A and 61 percent B when the correlation coefficient between the returns on A and B is.54