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J & K CET Engineering J and K - CET Engineering Solved Paper-2007

  • question_answer
    A coin is tossed three times. The probability of getting a head once and a tail twice is

    A)  \[\frac{1}{8}\]

    B)  \[\frac{1}{3}\]

    C)  \[\frac{3}{8}\]

    D)  \[\frac{1}{2}\]

    Correct Answer: C

    Solution :

    Total number of outcomes \[=8\] Favourable cases are \[HTT,\,THT,\,TTH.\] \[\therefore \]    Number of favourable outcomes \[=3\] \[\therefore \]    Required probability \[=\frac{3}{8}\]


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