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In a meeting, 70% of the members favo...

In a meeting, 70% of the members favour and 30% oppose a certain proposal. A member is selected at random and we take X = 0 if he opposed, and X = 1 if he is in favour. Find E(X) and Var (X).

A

`3/7,5/17`

B

`13/15,2/15`

C

`7/10,21/100`

D

`7/10,23/100`

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The correct Answer is:
C
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