Problem 13-7 Calculating Returns and Standard Deviations [LO1] Consider the following information: Rate of Return If State Occurs State of Probability of Economy State of Economy Stock A Stock B Recession .15 .04 .15 Normal .61 .07 .14 Boom .24 .12 .31 a. Calculate the expected return for Stocks A and B. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) b. Calculate the standard deviation for Stocks A and B. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)