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10th Class Mathematics Probability Question Bank MCQs - Probability

  • question_answer
    A man is known to speak truth 3 out of 4 times. He throws die and a number other than six comes up. Find the probability that he reports it is a six.

    A) \[\frac{3}{4}\]

    B) \[\frac{1}{4}\]

    C) \[\frac{1}{2}\]

    D) 1

    Correct Answer: B

    Solution :

    [b] When a number other than six appear and man reports it is a six. It means man is telling a lie.
    \[\therefore \] Probability \[=1-\frac{3}{4}=\frac{1}{4}\]


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