Use the following information to answer the questions below: Stock A Return 10% 5% 2% -3% -5% Probability 0.3 0.2 0.2 0.2 0.1 Return 15% 7% 3% -8% -14% Stock B Calculate expected return and standard deviation for both stocks. Probability 0.3 0.1 0.1 0.2 0.3