Given the following information, calculate the expected return and standard deviation for a portfolio that has 54 percent invested in Stock A, 30 percent in Stock B, and the balance in Stock C. (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Omit the "%" sign in your response.) Returns State of Probability of Economy State of Economy Stock A Stock B Stock C Boom .80 17 % 18 % 23 % Bust .20 9 0 9 Expected return % Standard deviation %