Seven years worth of returns for stock w and for the

Question

Seven years worth of returns for stock W and for the overall market, Rm, are listed below. Compute the estimated beta of stock W.

Year    Stock W      Market, Rm

2007       7.8%            5.4%

2008      12.1%          -6.7%

2009      14.5%          11.2%

2010      23.0%           15.6%

2011        8.2%          10.1%

2012      -12.4%            3.0%

2013       27.9%         16.7%