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

Returns

Year X Y

$1|10\%21\%$

$2|2842$

$3|17-10$

$4|-18-24$

$5|1950$

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$.$