3. Consider the following information about the following portfolio invested 20% in stock A, 30% in stock B and 50% in stock C. Returns if State Occurs Stock A Stock B Stock State of Economy Boom Normal Recession Probability of State of Economy 109d 70% 20% 10d 59 1 59d 99 -14% 6% 290 - 8% a. What is the portfolio expected return? Variance and standard deviation? b. The expected T-bill rate is 3.80 percent, what is the expected risk premium on the portfolio