A stock has an average return of 5.4%. It's actual return over 5 years is: Yr 1 Yr 2 Yr 3 Yr 4 Yr 5 8% 2% 4% 7% 6% Calculate the standard deviation of the stock's returns

A stock has an average return of 5.4%. It's actual return over 5 years is: Calculate the standard deviation of the stock's returns