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    Question

    A coin is tossed successively three times. Find the

    probability of getting exactly one tail or two tails?
    A 1/4 Correct Answer Incorrect Answer
    B 1/2 Correct Answer Incorrect Answer
    C 3/4 Correct Answer Incorrect Answer
    D 3/8 Correct Answer Incorrect Answer
    E 1/8 Correct Answer Incorrect Answer

    Solution

    Sample Space : { TTH, THT, HTT, HHT, HTH, THH,HHH, TTT } E = { TTH, THT, HTT, HHT, HTH, THH, } n(E) = 6 P(E) = 6/8 = 3/4

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