After extensive analysis, you predict the following returns for stocks A and B for three possible outcomes. Assume there are only three possible outcomes.

Outcome	Probability	Annual return
		Stock A	Stock B
Boom	20%	20%	30%
Normal	50%	15%	20%
Recession	30%	-10%	-15%

Calculate the following statistics: (1/1000 of one percent without % sign, e.g. 12.671, if a negative percentage, -9.56):

1) Expected return for stock A: Answer

2) Expected return for stock B: Answer

3) Standard deviation for stock A: Answer

4) Standard deviation for stock B: Answer