Consider the following information:

		Rate of Return if State Occurs
State of Economy	Probability of State of Economy	Stock A	Stock B	Stock C
Boom	.15	.38	.48	.28
Good	.45	.22	.19	.15
Poor	.30	.04	.09	.06
Bust	.10	.16	.34	.11

Your portfolio is invested 24 percent each in A and C, and 52 percent in B. What is the expected return of the portfolio?????

What is the variance of this portfolio?

What is the standard deviation?