2. Below are hypothetical returns for the stocks of two companies. a. Calculate the average returns and standard deviations for the two stocks Year Stock A's Return Stock B's Return 1 12% 4% 2 25% 10% 3 15% 5% 4 -12% -6% 5 18% 3% 6 55% 25% 7 10% 8% 8 3% 15% 9 -7% -2% 10 16% 10% b. Assume you have a portfolio comprised of 70% Stock A and 30% stock B. Given a correlation of the returns between the two stocks of 0.8267, calculate the variance and the standard deviation of the combined portfolio