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1. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the mean return on Pfizer stock.

Find your answer in % terms, to the 2nd decimal. Do not include % in your answer.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

2. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the mean return on S&P 500 market index.

Find your answer in % terms, to the 2nd decimal. Do not include % in your answer.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

3. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the Variance of returns on Pfizer stock.

Find your answer in % terms, to the 2nd decimal. Do not include % in your answer.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

4. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the variance of returns on S&P 500 stock.

Find your answer in % terms, to the 2nd decimal. Do not include % in your answer.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

5. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the Standard Deviation of returns on Pfizer stock.

Find your answer in % terms, to the 2nd decimal. Do not include % in your answer.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

6. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the Standard Deviation of returns on S&P 500.

Find your answer in % terms, to the 2nd decimal. Do not include % in your answer.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

7. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the covariance of returns between Pfizer stock and S&P 500.

Find your answer in % terms, to the 2nd decimal. Do not include % in your answer.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

8. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the correlation of returns between Pfizer stock and S&P 500.

Find your answer to the 2nd decimal.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%

9. The table below gives the annual returns on Pfizer Stock and the S&P 500 market Index.

Calculate the beta of Pfizer stock.

Find your answer to the 2nd decimal.

Year Ret_Pfizer Ret_S&P 500

2012 21.00% 12.00%

2011 18.00% 2.00%

2010 -2.00% 20.00%

2009 28.00% 30.00%

2008 -38.00% -40.00%

2007 -11.00% -4.00%

2006 2.00% 12.00%