Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. Retuns 7% 25 14 22 % 43 -14 -28 51 16 Requirement 1: (a) Calculate the arithmetic average return for X V (Click to select) 10.62% 11.75% 11.47% 761% 9.40% c average return for Y Requrenen (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 selecty3 (b) Calculate the standard deviation for Y. (Do not round intermediate calculations.) (Click to select)