Given the following information, calculate the expected return and standard deviation for a portfolio tha has 37 percent invested in Stock A, 34 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.) Returns State of Probability of State Economy Boom Bust of Economy Stock A Stock B Stock C 0.50 0.50 8% 21% 24% Expected return Standard deviation