A stock had the following annual returns: -6.11% , 19.56% , -21.74% , and -1.86%. Compute the following for the stock: Expected Return (Please write your answer as a percentage (e.g. .1234 should be written as 12.34)): % Variance (Please write your answer with 4 decimal places): Standard Deviation (Please write your answers as a percentage (e.g. .1234 should be written as 12.34)): %