8. Peter Griffin calculates that his portfolio's risk, as measured by the standard deviation, is 19.67%. His portfolio is made up of many stocks from just two companies, South Park Company and Quahog Company. South Park Co.'s returns have a standard deviation of 12.9% and Quahog Co.'s returns have a standard deviation of 28.84%. If the weight of Quahog Co. in his portfolio is 48.21%, what is the correlation between the returns of Quahog and South Park.

9.

A portfolio has an excess return of 15.9 % and a standard deviation of 15.23 %. What is the Sharpe Ratio for this portfolio?