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 Mar, 2013, 07:36: PM

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  | 17th Mar, 2013, 06:45: PM

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