Consider the following information about three stocks: State of Economy Probability of State of Economy Rate of Return if State Occurs Stock A Stock B Stock C Boom .30 .27 .32 .55 Normal .40 .23 .18 .15 Bust .30 .01 .32 .48 a-1. If your portfolio is invested 40 percent each in A and B and 20 percent in C, what is the portfolio expected return? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) a-2. What is the variance? (Do not round intermediate calculations and round your answer to 5 decimal places, e.g., .16161.) a-3. What is the standard deviation? (Do not round intermediate calculations and enter your answer as a