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Exhibit 7B σ\sigma 1)2 - R1 σ\sigma 1) E σ\sigma 2)] - [E σ\sigma

question 39

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Exhibit 7B.1
USE THE INFORMATION BELOW FOR THE FOLLOWING PROBLEM(S)
The general equation for the weight of the first security to achieve the minimum variance (in a two stock portfolio) is given by:
W1 = [E( σ\sigma 1) 2 - r1.2 E( σ\sigma 1) E( σ\sigma 2) ] - [E( σ\sigma 1) 2 + E( σ\sigma 2) 2 - 2 r1.2 E( σ\sigma 1) E( σ\sigma 2) ]
-Refer to Exhibit 7B.1. What is the value of W1 when r1.2 = -1 and E( σ\sigma 1) = .10 and E( σ\sigma 2) = .12?


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