State of Economy	Probability of State of Economy	Return of Stock A if State Occurs	Return of Stock B if State Occurs
Recession	0.30	-0.20	0.10
Normal	?	0.30	0.20
Boom	0.15	0.40	0.30

What is the expected return for Stock A?

What is the standard deviation for Stock A?

Suppose you have $50,000 total. If you put $20,000 in Stock A and the remainder in Stock B, what are the portfolio returns in each state?

Suppose you have $50,000 total. If you put $20,000 in Stock A and the remainder in Stock B, what will be the expected return of your portfolio?

Suppose you have $50,000 total. If you put $20,000 in Stock A and the remainder in Stock B, what will be the standard deviation of your portfolio?