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	.30	.40	.31
Good	.55	.17	.11	.10
Poor	.25	.03	.06	.04
Bust	.05	.10	.26	.07

Your portfolio is invested 26 percent each in A and C, and 48 percent in B. What is the expected return of the portfolio?

What is the variance of this portfolio?

What is the standard deviation?