For the next 7 years, you expect to observe the following annual rates of returns on XYZ corporation's stock: -0.77%,-0.42% -6,4% -3.72 %, 11.4%, 1.68 %, and -2.13 %. What is the Sharpe ratio if the risk free rate is 1.59 percent? 0 -0.2896 0 -0.28 0 -0.32 0 -0.25 0 -0.27