Please answer the following question, showing all work accordingly. Thank you.

Calculate the average monthly return for Cola Co. ___________

Calculate the average monthly return for Gas Co. ___________

Calculate the variance for Cola Co. _________

Calculate the variance for Gas Co. _________

Calculate the volatility for Cola Co. __________

Calculate the volatility for Gas Co. __________

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.) \begin{tabular}{|l|r|r|} \hline & Cola Co. (\%) & Gas Co. (\%) \\ \hline January & 0.099 & 0.044 \\ \hline February & 0.016 & 0.056 \\ \hline March & 0.042 & 0.013 \\ \hline April & 0.026 & 0.02 \\ \hline May & 0.091 & 0.016 \\ \hline June & 0.082 & 0.038 \\ \hline July & 0.12 & 0.047 \\ \hline August & 0.007 & 0.004 \\ \hline September & 0.07 & 0.009 \\ \hline October & 0.012 & 0.004 \\ \hline November & 0.092 & 0.102 \\ \hline December & 0.011 & 0.055 \\ \hline \end{tabular}