Intermediate Financial Management, 12th edition. Problem 2-13: HIstorical Realized Rates of Return: You are considering an investment in eithe rindividual stocks or aportfolio of stocks. THe two stocks you are researching, Stock A and stock B, have the following historical returns:

Year	A	B
2011	-20%	-5%
2012	42	15
2013	20	-13
2014	-8	50
2015`	25	12

b. Suppose you held a portfolio consisting of 50% of Stock A and 50% of Stock B. What would have been the realized rate of return on the portfolio in each year? What would have been the average return on the portfolio during this period?

c. Calculate the standard deviation of returns for each stock and for the portfolio.