Consider the following information: Rate of Return if State Occurs State of Economy Boom Bust Probability of State of Economy 0.70 0.30 Stock A 0.19 0.17 Stock B Stock C 0.05 0.17 0.09 0.03 a. What is the expected return on an equally weighted portfolio of these three stocks? b. What is the variance of a portfolio invested 20 percent each in A and B and 60 percent in C