If the mean of a data set is 50 and the coefficient of variation is 20%, the standard deviation is: MCQ with Answer and Explanation

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If the mean of a data set is 50 and the coefficient of variation is 20%, the standard deviation is:

A. 1000

B. 0.4

C. 5

D. 10

Answer: Option D

Solution (By JKExamLibrary)

CV = (SD/mean)×100 ⇒ 20 = (SD/50)×100 ⇒ SD = 10.

This question belongs to: Accountancy and Statistics Statistics

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The SRS (Sample Registration System) provides data on:

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Correct Answer: Option C

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The arithmetic mean of a data set is not a good representative if:

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If P(A|B) = P(A), then events A and B are:

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Independence means P(A|B) = P(A).

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