Given the following information, calculate the expected return and standard deviation for a portfolio that has 29 percent invested in Stock A, 23 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 0.30 0.70 19% 12% 15 22% -15 Expected return Standard deviation