Fight Finance

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Question 73  portfolio risk, standard deviation

Portfolio Details
Stock Expected
return
Standard
deviation
Covariance ##(\sigma_{A,B})## Beta Dollars
invested
A 0.2 0.4 0.12 0.5 40
B 0.3 0.8 1.5 80
 

What is the standard deviation (not variance) of the above portfolio? Note that the stocks' covariance is given, not correlation.




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