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 %	21 %
2	30	42
3	19	-8
4	-20	-22
5	21	50

Requirement 1:
(a)	Calculate the arithmetic average return for X.
	(Click to select)10.04%12.40%15.13%14.01%15.50%

(b)	Calculate the arithmetic average return for Y.
	(Click to select)16.60%20.75%13.45%20.25%18.76%

Requirement 2:
(a)	Calculate the variance for X. (Do not round intermediate calculations.)
	(Click to select)0.0461630.0369300.0368120.0460140.029913

(b)	Calculate the variance for Y. (Do not round intermediate calculations.)
	(Click to select)0.1211000.0784730.0905290.0968800.113161

Requirement 3:
(a)	Calculate the standard deviation for X. (Do not round intermediate calculations.)
	(Click to select)24.02%19.09%19.22%15.57%21.45%

(b)	Calculate the standard deviation for Y. (Do not round intermediate calculations.)
	(Click to select)25.21%31.13%38.91%33.64%30.09%