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A purse contains 4 coins each of which is eiether a rupee or 2 rupee coin .Find the expected value of a coin in that purse.
->In this ques. there wil be 5 cases , how the probability in one of the case (4 1rs coin , ) is 1/16...??
Dear Ranjita,
Are you talking abt probability of Re1 ??
if yes, Then it should be 1/2.
4c4
4c0+4c1+4c2+4c3+4c4
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