In: Accounting
| Rate of Return if State Occurs | ||||
| State of Economy | Probability of State of Economy  | 
Stock A | Stock B | Stock C | 
| Boom | 0.70 | 0.25 | 0.19 | 0.09 | 
| Bust | 0.30 | 0.09 | 0.09 | 0.03 | 
| 
 a. What is the expected return on an equally weighted portfolio of these three stocks?  | 
| 
 b. What is the variance of a portfolio invested 30 percent each in A and B and 40 percent in C?  |