If the economy is normal, Charleston Freight stock is expected to return 16.5 percent. If the economy falls into a recession, the stock's return is projected at a negative 11.6 percent. The probability of a normal economy is 70 percent while the probability of a recession is 30 percent. What is the variance of the returns on this stock? O 0.014315 O 0.016582 0.013420 0.012634 O 0.010346 Your portfolio is comprised of 30 percent of stock X, 25 percent of stock Y, and 45 percent of stock Z. Stock X has a beta of 1.16, stock Y has a beta of 1.47, and stock Z has a beta of 0.42. What is the beta of your portfolio? 1.09 0.87 O 1.21 1.18 0.90 The risk-free rate of return is 3.2 percent and the market risk premium is 4.6 percent. What is the expected rate of return on a stock with a beta of 2.12? 10.67 percent 10.92 percent 6.17 percent 12.95 percent 8.22 percent