11) (5 pts) A stock had the following returns over the last 4 years. 2010 2011 2012 2013 14% 24% -8% -2% What was the variance of returns over the four year period? What was the standard deviation of the returns over the four year period? 12) (5 pts) You have decided to invest $10,000 in Stock AA, $12,000 in Stock BB and $3,000 in Stock CC. The expected returns for each stock is given below: Stock AA Expected Return 8% 9% 12% CC What is the Expected return of your portfolio of stocks? Expected Return =