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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...??


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...??


Grade:11

1 Answers

Abhaya kumar mishra abhaya
14 Points
9 years ago

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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