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) Month January February March April May June July August September October November Cola Co. 2.80% 3.00% 1.80% 4.70% 0.60% 11.10% 1.60% 0 50% 5.00% 1.40% 1.50% The average monthly return for Cola Co is % (Round to two decimal places) Month January February March April May June July August September October November December Cola Co. 2.80% 3.00% - 1.80% 4.70% -0.60% 11.10% 1.60% - 0.50% - 5.00% - 1.40% 1.50% -0.70% Gas Co. 5.90% - 1.50% -1.30% 2.50% -1.70% 14.40% 9.30% - 2.80% -1.20% 0.00% 12.00% 3.00% I places.) e Help - Clear All Check Answer 684 Litre hp