Use the information below to answer 5.2 and 5.3. You own 100 shares of each of the following two stocks: Stock Beta Standard Deviation Price per Share $70 $20 30% 1.05 B 25% 0.55 Assume that the single index model holds and that the standard deviation of the market portfolio is 22%. [5.2, Mark 1] What is the Beta of this portfolio? Show your calculations [5.3, Mark 2] What is the residual variance of the returns of the portfolio? Show your calculations