The first part is shown in the picture. Need avg monthly return for both companies. The other parts needed are as follows

Volatility

Variance for both

standard deviation

Thanks!

Month 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 November December Cola Co. 0.30% - 4.70% 3.96% 1.90% 3.90% - 6.80% -2.30% 7.50% 6.40% 8.00% -6.38% 5.40% Gas Co. 1.50% - 1.30% 5.40% -1.30% 4.50% - 7.30% 10.10% 5.70% - 5.40% -3.00% -5.30% -0.60% The average monthly return for Cola Co. is %. (Round to two decimal places.)