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    Question

    ‘A’ and ‘B’ play a game involving tossing a coin 4

    times. ‘A’ wins if exactly two heads appear. Otherwise, ‘B’ wins. Find the probability that ‘A’ wins the game.
    A 3/8 Correct Answer Incorrect Answer
    B 1/2 Correct Answer Incorrect Answer
    C 5/8 Correct Answer Incorrect Answer
    D 1/4 Correct Answer Incorrect Answer

    Solution

    Total number of outcomes = 2 4 = 16
    Number of favourable outcomes (exactly 2 heads) = C(4,2) = 6
    Probability that ‘A’ wins = 6/16 = 3/8

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