quickly please

Ally Corp. has annualized returns over the past three years of the following Year 1:11 Year 2:13 Year 3:21 The risk free rate is currently. Please enter Aly Corps Sharpe Rabobelor calculared using the prior 3 years of data calculate average arithmetic NOT geometric return for the average return portion of the formule Use the sample Excel standard deviation formula sevs to calculate volatility if needed) Round your answer to two decimal points