6.

7.

The following spreadsheet contains monthly returns for Cola Co. and Gas Co. for 2013 . Using these data, estimate the average monthly return and the volatility for each stock. (Click on the following icon in order to copy its contents into a spreadsheet.) You have a portfolio with a standard deviation of 23% and an expected return of 19%. You are considering adding one of the two stocks in the following table. If after adding the stock you will have 30% of your money in the new stock and 70% of your money in your existing portfolio, which one should you add? Standard deviation of the portfolio with stock A is \%. (Round to two decimal places.)