You are considering an investment in either individual stocks or a portfolio of stocks. The two stocks you are researching. Stock A and Stock B, have the following historical returns: Calculate the average rate of return for each stock during the 5-year period. Suppose you had 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? Calculate the standard deviation of returns for each stock and for the portfolio. Suppose you are a risk-averse investor. Assuming Stocks A and B are your only choices, would you prefer to hold Stock A, Stock B, or the portfolio? Why? You have observed the following returns over time: Assume that the risk-free rate is 6% and the market risk premium is 5%. What are the betas of Stocks X and Y