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

	Returns
Year	X	Y
1	8 %	18 %
2	26	39
3	15	-12
4	-16	-26
5	17	47

Requirement 1:
(a)	Calculate the arithmetic average return for X.
	(Click to select)12.50%12.20%8.10%10.00%11.30%

(b)	Calculate the arithmetic average return for Y.
	(Click to select)16.10%14.92%16.50%10.69%13.20%

Requirement 2:
(a)	Calculate the variance for X. (Do not round intermediate calculations.)
	(Click to select)0.0315630.0252500.0249270.0311580.020453

(b)	Calculate the variance for Y. (Do not round intermediate calculations.)
	(Click to select)0.0882920.1250880.0810570.1000700.110364

Requirement 3:
(a)	Calculate the standard deviation for X. (Do not round intermediate calculations.)
	(Click to select)15.89%17.65%12.87%15.69%19.86%

(b)	Calculate the standard deviation for Y. (Do not round intermediate calculations.)
	(Click to select)33.22%39.54%25.62%31.63%29.71%