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IF the variance of 1,2,3,4,5……..10 is 99...

IF the variance of 1,2,3,4,5……..10 is `99/12` then the standard deviation of 3,6,9,12……….30 is

A

`297/4`

B

`3/2 sqrt(33)`

C

`3/2 sqrt(99)`

D

`sqrt((99)/12)`

Text Solution

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The correct Answer is:
B
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