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The prabability distribution of a rand...

The prabability distribution of a random variable x is given below
` {:(x=k,0,1,2,3,4),(p(x=k),0.1,0.4,0.3,0.2,0):}`
The variance of X is

A

`1.6`

B

`0.24`

C

`0.84`

D

`0.75`

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The correct Answer is:
C
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