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Multiple choice the standard deviation of a portfolio of a risky security is A. the square root of the sum of the securities' covariances B.the
Multiple choice
the standard deviation of a portfolio of a risky security is
A. the square root of the sum of the securities' covariances
B.the square root of the weighted sum of the securities' variances and covariances
C. the square root of the sum of securities' variances
D. the square root of the weighted sum of the securities' variances
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