If mean and coefficient of variation of ...

If mean and coefficient of variation of x are 10% and 40% respectively, the variance of x is

A

4

B

2

C

16

D

8

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Knowledge Check

If the mean and coefficeint of mean diviation about mean of a distribution be 40 and 30% respectively, then the mean deviation about mean will be-

A

12

B

15

C

20

D

24

In a distribution, coefficient of variation =5% and variance =4, then the mean of the distribution is -

A

40

B

32

C

25

D

45

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UNITED BOOK HOUSE-Bethune Collegiate School, Question Paper -Exercise

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