What is the standard deviation of a portfolio that is invested 64 percent in Stock A...

nb1277

New member
...and 36 percent in Stock B? given the following:
state of economy Prob. of state of economy stock A returns Stock B returns
boom 0.19 30% -4%
normal 0.81 14% 21%

The choices are 4.06%, 0.49%, 3.64%, 2.28%.

Thanks for your help!
 
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