JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    If a dice is thrown twice, then the probability of getting 1 in the first throw only is

    A)                 \[\frac{1}{36}\]    

    B)                 \[\frac{3}{36}\]

    C)                 \[\frac{5}{36}\]    

    D)                 \[\frac{1}{6}\]

    Correct Answer: C

    Solution :

               Probability of getting 1 in first throw \[=\frac{1}{6}\]            Probability of not getting 1 in second throws \[=\frac{5}{6}\]                 Both are independent events, so the required probability \[=\frac{1}{6}\times \frac{5}{6}=\frac{5}{36}\].


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