Consider the following information: Rate of Return If State Occurs
State of Probability of
Economy State of Economy Stock A Stock B Stock C
Boom .17 .364 .464 .344
Good .43 .134 .114 .184
Poor .33 .024 .034 −.089
Bust .07 −.124 −.264 −.104

a. Your portfolio is invested 28 percent each in A and C and 44 percent in B. What is the expected return of the portfolio? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e. g., 32.16.)
b. What is the variance of this portfolio? (Do not round intermediate calculations and round your answer to 5 decimal places, e. g., 32.16161.)
c. What is the standard deviation of this portfolio? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e. g., 32.16.)