Hello, Can you provide some assistance with this question along with explanation? Consider the following information:

State of Economy Probability of State of Economy Rate of Return if State Occurs

Stock A Stock B Stock C

Boom 0.1 0.35 0.45 0.27

Goo 0.6 0.16 0.1 0.08

Poor 0.25 -0.01 -0.06 -0.04

Bust 0.05 -0.12. -0.2 -0.09

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

b.What is the variance of this portfolio? The standard deviation?

Thank you.