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MHT CET 2022 Mathematics question

MathematicsStatisticsMHT CET 2022

A player tosses 2 fair coins. He wins ₹ 5 if 2 heads appear, ₹ 2 if 1 head appears and ₹ 1 if no heads appear, then the variance of his winning amount is

Answer: (A)

Solution

For 2 fair coins: , , . Winning amount with these probabilities. .

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Question ID VK-093727