Use me To Towing information on states on the economy and Stock Tecums to answer Questions (a), (b), and (c). Economy Return on X Return on X Probability .70 Good - 10% 21% an Poor .30 28% 8% (a) (1 points) Compute the expected return on Stock X. Economy Probability Return on Stock X Product Good .70 Poor .30 E(R) = (b) (1 point) Calculate the variance and standard deviation of Stock X. Economy Probability Ry - E(R) [RX Product E(Rx)] Good .70 Poor .30 O= (0) (1 point) Compute the expected return on a portfolio of 40 percent Stock X and 60 percent Stock Y Economy Probability Return on Portfolio Product Good .70 Poor 30 E(R) =