In: Finance
You have a portfolio which is comprised of 30 percent of stock A and 70 percent of stock B. What is the portfolio standard deviation?
| 
 State of the Economy  | 
 Probability  | 
 E(R) A  | 
 E(R) B  | 
||
| 
 30%  | 
 70%  | 
||||
| 
 Boom  | 
 0.15  | 
 20.00  | 
 14.00  | 
||
| 
 Normal  | 
 0.75  | 
 11.00  | 
 9.00  | 
||
| 
 Recession  | 
 0.10  | 
 -23.00  | 
 -5.00  | 
||
| A. | 
 6.68%  | 
|
| B. | 
 6.82%  | 
|
| C. | 
 7.47%  | 
|
| D. | 
 4.00%  | 
|
| E. | 
 5.56%  | 
The answer is not C.