Rate of Return if State Occurs
State of	Probability of
Economy	State of Economy			Stock A			Stock B			Stock C
Boom		.10			.30			.40			.20
Good		.50			.15			.11			.09
Poor		.35			.02			.05			.03
Bust		.05			.10			.15			.07
Your portfolio is invested 32 percent each in A and C, and 36 percent in B. What is the expected return of the portfolio? What is the expected rate of return?

What is the variance of this portfolio?

what is the standard deviation?