JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    A single letter is selected at random from the word ?PROBABILITY?. The probability that the selected letter is a vowel is     [MNR 1986; UPSEAT 2000]

    A)                 \[\frac{2}{11}\]    

    B)                 \[\frac{3}{11}\]

    C)                 \[\frac{4}{11}\]    

    D)                 0

    Correct Answer: C

    Solution :

                    Since there are one \[A,\] two \[I\] and one \[O,\] hence the required probability \[=\frac{1+2+1}{11}=\frac{4}{11}.\]


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