Let's consider the following information:

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State of Economy Boom Good Poor Bust Rate of Return if State Occurs Probability of State of Economy Stock A Stock B Stock C .30 .23 .31 .30 .15 .16 .11 .12 .30 .02 -.07 .25 -.22 -.24 -.13 -.08 a. Your portfolio is invested 25 percent each in Stocks A and C and 50 percent in Stock B. What is the expected return of the portfolio? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Expected return % b-1. What is the variance of this portfolio? (Do not round intermediate calculations. Round your answer to 5 decimal places.) Variance b-2. What is the standard deviation? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Standard deviation %