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.

Cola Co. (%) Gas Co. (%) January 0.0560 -0.0200 February 0.0580 -0.0110 March -0.0370 -0.0160 April -0.0220 -0.0510 May 0.0130 0.0360 June -0.0380 0.0080 July 0.0260 0.0470 August -0.0380 -0.0550 September 0.0090 -0.0100 October -0.0130 0.0520 November 0.0340 0.0120 December 0.0160 0.0010

The average monthly return for Cola Co. is enter your response here%. (Round to two decimal places.)