B D E F G H I 2 3 Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. 4 5 6 7 8 9 Year 1 2 3 4 5 X 15% 26% 7% -13% 11% Y 21% 36% 13% -26% 15% 10 12 13 14 Complete the following analysis. Do not hard code values in your calculations. Make sure to use the "sample" Excel formulas in your calculations. You must use the built-in Excel functions to answer this question. 15 16 17 Y 18 19 Arithmetic average return Variance Standard Deviation 20 -21