please help with a-c

Using the data in the following table, E. estimate the: a. Average return and volatility for each stock. b. Covariance between the stocks. c. Correlation between these two stocks. a. Estimate the average return and volatility for each stock. The average return of stock A is %. (Round to two decimal places.) Data Table - (Click on the following icon in order to copy its contents into a spreadsheet.) Year Stock A Stock B 2010 - 11% 12% 2011 17% 33% 2012 3% 10% 2013 - 3% -3% 2014 3% -9% 2015 10% 31% Print Done