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in a game,a man wins a rupee for a six and loses a rupee for any other number when a fair die is thrown.the man decided to throw a die thrice but quit as and when he gets a six .find E(X).

Asked by 16th March 2013, 7:36 PM
Answered by Expert
Answer:
 
Please note the answer in the book is wrong as that can be derived only by not considering this 4th case. 
Answered by Expert 17th March 2013, 6:45 PM
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