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 20 percent each in A and B and 60 percent in C? (Do not round intermediate calculations and round your answer to 6 decimal places, e.g., .161616.)

Rate of Return If State Occurs State of Probability of Economy Economy Boom Bust State of Stock C 39 -.06 Stock A Stock B 21 05 .56 .13 15