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Discussion :: GATE Mechanical

  1. The probability that a student knows the correct answer to a multiple choice question is 2/3. If the student does not know the answer, then the student guesses the answer. The probability of the guessed answer being correct is 1/4. Given that the student has answered the question correctly, the conditional probability that the student knows the correct answer is
    2. A.
    2/3
    B.
    3/4
    C.
    5/6
    D.
    8/9

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    Workspace

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    Answer : Option D

    Explanation :

    -NA-

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