Seven years worth of returns for stock W and for the S&P 500, Rm, are listed below.Compute the estimated beta of stock W.Note: You can use either Excel or your calculator to solve this.

YearStock WS&P 500, Rm

20117.8%4.2%

201212.1%7.9%

201311.5%6.8%

201423.6%7.3%

20158.2%1.4%

2016-12.4%1.1%

201727.9%14.7%