Syntex, Inc. Is considering an investment in one of two common stocks. Giventhe information that follows, Which investment is better, based on risk(as measured by the standard deviation) and return?

Common Stock A		Common Stock B
Probability	Return	Probability	Return
0.30	11%	0.20	-5%
0.40	15%	0.30	6%
0.30	19%	0.30	14%
		0.20	22%