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What is the coefficient of variation for a distribution with a mean of 10 and a variance of 4?

A)
40%.
B)
25%.
C)
20%.

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What is the coefficient of variation for a distribution with a mean of 10 and a variance of 4?

A)
40%.
B)
25%.
C)
20%.



Coefficient of variation, CV = standard deviation / mean. The standard deviation is the square root of the variance, or 4? = 2. So, CV = 2 / 10 = 20%.

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If the historical mean return on an investment is 2.0% and the standard deviation is 8.8%, what is the coefficient of variation (CV)?

A)
1.76.
B)
4.40.
C)
6.80.

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If the historical mean return on an investment is 2.0% and the standard deviation is 8.8%, what is the coefficient of variation (CV)?

A)
1.76.
B)
4.40.
C)
6.80.



The CV = the standard deviation of returns / mean return or 8.8% / 2.0% = 4.4.

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c

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xx

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