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A random variable X takes values 1,2,3 a...

A random variable X takes values 1,2,3 and 4 with probabilities `(1)/(6),(1)/(3),(1)/(3),(1)/(6)` respectively, then its mean and variance is equal to

A

`5/2, 11/12`

B

`5/2, 11/16`

C

`5/3, 11/16`

D

`5/3, 11/12`

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The correct Answer is:
A
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