Given the following information, calculate the expected return and standard deviation for a portfolio that has 50 percent invested in Stock A, 20 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 Economy Boom Bust Probability of State of Economy .80 Stock A 15% 16 Stock B 18% Stock C 25% - 16 20 Expected return Standard deviation % %