Use the following returns for X and Y$.$

Year Returns

X Y

$122\mathrm{.}8\%29\mathrm{.}4\%$

$217\mathrm{.}84\mathrm{.}8$

$310\mathrm{.}831\mathrm{.}4$

$421\mathrm{.}616\mathrm{.}6$

$55\mathrm{.}835\mathrm{.}4$

Calculate the average returns for X and Y$.$

Calculate the variances for X and Y$.$

Calculate the standard deviations for X and Y$.$