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

Returns

Year X Y

1 16 % 18 %

2 24 39

3 13 -9

4 -14 -23

5 15 47

Calculate the arithmetic average return for X.

Calculate the arithmetic average return for Y.

Calculate the variance for X.

Calculate the variance for Y.

Calculate the standard deviation for X.

Calculate the standard deviation for Y.