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A randdom variable X takes the values 1,...

A randdom variable X takes the values 1, 2, 3 and 4 such that `2P(X=1)=3P`
`(X=2)=P(X=3)=5P(X=4)`. If `sigma^(2)` is the variance and `mu` is the mean of X. Then, `sigma^(2)+mu^(2)=`

A

`(421)/(61)`

B

`(570)/(61)`

C

`(149)/(61)`

D

`(3480)/(3721)`

Text Solution

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The correct Answer is:
A
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