Consider the following information: Rate of Return if State Occurs State of Economy Probability of State of Economy Stock A Stock B Stock C Boom .15 .38 .48 .28 Good .45 .22 .19 .15 Poor .30 .04 .09 .06 Bust .10 .16 .34 .11 Requirement 1: Your portfolio is invested 24 percent each in A and C, and 52 percent in B. What is the expected return of the portfolio? (Do not round your intermediate calculations.) Requirement 2: (a) What is the variance of this portfolio? (Do not round your intermediate calculations.) (b) What is the standard deviation? (Do not round your intermediate calculations.)