P12-7 Calculating Returns and Variability (LOI) Using the following returns, calculate the average returns, the variances, and the standard deviations for X and Y. (Note that the book covers both the "arithmetic" and the "geometric" averages. Here, calculate the regular "arithmetic" average returns. These are the average returns covered in the course lecture. Returns Year X Y 15 % 18 % 2 33 39 3 22 -12 4 -23 -26 5 24 47 OWN - Requirement 1: (a)Calculate the average return for X. 14.20% 14.20% (b)Calculate the average return for Y. 13.20% V Requirement 2: (a)Calculate the variance for X. (Do not round intermediate calculations.) (Click to select) (b)Calculate the variance for Y. (Do not round intermediate calculations.) (Click to select) Requirement 3: (a)Calculate the standard deviation for X. (Do not round intermediate calculations.) (Click to select) (b)Calculate the standard deviation for Y. (Do not round intermediate calculations.) (Click to select) Requirement 2: (a)Calculate the variance for X. (Click to select) Click to select) (b) riance for Y. ( 0.059213 0.038370 Re (a) 0.047370 ndard deviati 0.047427 0.059283 (b) indard deviat (Click to select) v (b)Calculate the variance for Y. (D (Click to select) Click to select) Re (a) 0.081057 ndard deviatio 0.125088 0.088292 (b) ndard deviation 0.100070 0.110364 Requirement 3: (a)Calculate the standard deviation for X. ( (Click to select) (Click to select) (b) 21.68% indard deviation for Y. ( 24.35% 17.63% 27.21% 21.76% (b) riance for Y. (Do not rou (Click to select) 39.54% Re 25.62% (a) 29.71% ndard deviation for X. ( 33.22% (b) 31.63% ndard deviation for Y. ( (Click to select) N