2013. 7% 33% please solve it in 20 mins I will thumb you up please also for 2013

Using the data in the following table, estimate the average return and volatility for each stock. Realized Returns Year Stock A Stock B 2008 - 4% 23% 2009 17% 31% 2010 7% 12% 2011 - 5% - 1% 2012 3% - 8% The return of stock A is %. (Round to two decimal places.) The return of stock B is %. (Round to two decimal places.) The variance of stock A is (Round to five decimal places.) The variance of stock B is (Round to five decimal places.) The standard deviation of stock A is%. (Round to two decimal places.) The standard deviation of stock B is %. (Round to two decimal places.)