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

	Returns
Year	X	Y
1	13 %	26 %
2	31	47
3	20	-7
4	-21	-21
5	22	55

Requirement 1:
(a)	Calculate the arithmetic average return for X.
	(Click to select) 16.25% 13.00% 14.69% 15.86% 10.53%

(b)	Calculate the arithmetic average return for Y.
	(Click to select) 25.00% 22.60% 16.20% 24.40% 20.00%

Requirement 2:
(a)	Calculate the variance for X. (Do not round intermediate calculations.)
	(Click to select) 0.050235 0.050312 0.032602 0.040250 0.040188

(b)	Calculate the variance for Y. (Do not round intermediate calculations.)
	(Click to select) 0.137500 0.106906 0.133633 0.110000 0.089100

Requirement 3:
(a)	Calculate the standard deviation for X. (Do not round intermediate calculations.)
	(Click to select) 25.08% 19.95% 16.25% 22.41% 20.06%

(b)	Calculate the standard deviation for Y. (Do not round intermediate calculations.)
	(Click to select) 32.70% 26.86% 41.46% 33.17% 36.56%

rev: 09_20_2012