Calculate expected return and standard deviation for stock B:

Year	A	B	C	D	E
1	9.7%	10.7%	70.3%	13.0%	23.1%
2	1.1%	23.4%	-54.0%	15.2%	-16.0%
3	-38.9%	-32.1%	40.2%	-40.0%	0.8%
4	34.5%	26.3%	94.5%	57.2%	13.7%
5	14.6%	11.8%	7.3%	-4.2%	41.3%
6	3.7%	1.9%	25.5%	3.9%	5.7%

		Expected return equals 7.0%; standard deviation equals 21.1%
		Expected return equals 7.9%; standard deviation equals 23.1%
		Expected return equals 9.7%; standard deviation equals 19.7%
		Expected return equals 4.9%; standard deviation equals 19.7%