.7. A gambler wins Rs 6 with probability 0.2 and losses Rs 4 with prob – InterviewSolution

1.	.7. A gambler wins Rs 6 with probability 0.2 and losses Rs 4 with probability 0.3, find his expected gain
Answer» expected gain = 6×0.2-4×0.2 = 1.2-0.8 = 0.4

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