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	.32	.42	.33
Good	.45	.19	.13	.12
Poor	.30	.05	.08	.06
Bust	.10	.16	.28	.09

Your portfolio is invested 30 percent each in A and C, and 40 percent in B. What is the expected return of the portfolio?

What is the variance of this portfolio?

What is the standard deviation?