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. January February March April May June July August September October ID The average monthly return for Cola Co. is%. (Round to two decimal places.) Month Cola Co. -9.90% -1.60% 4.20% -2.60% - 9.10% -8.20% 12.00% -0.70% -7.00% 1.20% Gas Co. 4.40% 5.60% -1.30% -2.00% -1.60% -3.80% 4.70% 0.40% -0.90% 0.40% D You have a portfolio with a standard deviation of 24% and an expected return of 17%. 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? Expected Standard Correlation with Deviation Your Portfolio's Returns Return 14% Stock A 21% 0.3 Stock B 14% 20% 0.7 Standard deviation of the portfolio with stock A is%. (Round to two decimal places.)