Using the following returns calculate the arithmetic

Question

Using the following returns, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. Returns

Year X Y

1 12 % 18 %

2 30 39

3 19 -10

4 -20 -24

5 21 47

Requirement 1: (a) Calculate the arithmetic average return for X. (b) Calculate the arithmetic average return for Y. Requirement 2: (a) Calculate the variance for X. (Do not round intermediate calculations.) (b) Calculate the variance for Y. (Do not round intermediate calculations.) Requirement 3: (a) Calculate the standard deviation for X. (Do not round intermediate calculations.) (b) Calculate the standard deviation for Y.