Using the data in the following table, 5. estimate the: a. Average return and volatility for each stock. b. Covariance between the stocks. c. Correlation between these two stocks. Year Stock A Stock B 2010 - 10% 21% 2011 20% 7% 2012 5% 30% 2013 - 5% - 3% 2014 2% -8% 2015 9% 25%