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'S' is the sample space obtained when a...

'S' is the sample space obtained when a pair of symmetric dice are tossed , X is the random variable defined by X(a,b) = max {a,b} so that the range of X is the set {1,2,3,4,5,6}. Then the mean of X is

A

`5 . 5 `

B

`5 . 57`

C

`4 . 97`

D

`4 . 47`

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The correct Answer is:
D
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