You buy the following stock with the following characteristics. What is the expected return of your portfolio? Stock Price Shares Etret) JA 17 500 696 B 23 250 996 c 34 250 1095 D 46 100 1496 9:7546 You have a sample of returns from Stocks A and B. What is the standard deviation of a portfolio consisting of 70% A and 30% B? Month Stock A Stock B 1 996 696 2 21% 89 3 1546 -296 4 896 390 5 -296 896