Consider the following information on a portfolio of three stocks:

State of	Probability of			Stock A			Stock B			Stock C
Economy	State of Economy			Rate of Return			Rate of Return			Rate of Return
Boom		.14			.07			.32			.55
Normal		.55			.15			.17			.25
Bust		.31			.16		?	.16		?	.35

a. If your portfolio is invested 40 percent each in A and B and 20 percent in C, what is the portfolios expected return, the variance, and the standard deviation?