Question

In calculating the variance of a portfolio's returns, squaring the deviations from the mean results in:
I. Preventing the sum of the deviations from always equaling zero
II. Exaggerating the effects of large positive and negative deviations
III. A number for which the unit is percentage of returns

A. I only

B. I and II only

C. I and III only

D. I, II, and III

Answer

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