Question

In a game of chance, first 20 natural numbers are listed on a piece of paper and three numbers are chosen at random. If the numbers form an A.P. you will get Rs. 10000, If the numbers form a GP you will get Rs. 20000, otherwise you have to pay Rs. 8000. What is the mean expected gain and the corresponding risk, if you play the game?

Answer 1

Answer:

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