In the APT model, what is the nonsystematic standard deviation of an equally-weighted portfolio that has an average value of σ(ei) equal to 20% and 40 securities? A. 0.5% B. 3.16% C. 3.54% D. 12.5% E. 625%

EBK CONTEMPORARY FINANCIAL MANAGEMENT
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Author:MOYER
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Chapter8: Analysis Of Risk And Return
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In the APT model, what is the nonsystematic standard deviation of an equally-weighted portfolio that has an average value of σ(ei) equal to 20% and 40 securities?

A. 0.5%
B. 3.16%
C. 3.54%
D. 12.5%
E. 625%
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