Consider the following information:

State of Economy Probability of State of Economy Rate of Return if State Occurs Stock A Stock B Stock C Boom .60 .08 .16 .34 Bust .40 .18 .08 .07

a. What is the expected return on an equally weighted portfolio of these three stocks? (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 a portfolio invested 18 percent each in A and B and 64 percent in C? (Do not round intermediate calculations and round your answer to 6 decimal places, e.g., .161616.)