JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    A coin is tossed twice. The probability of getting head both the  times is                                      [MNR 1978]

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

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

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

    D)                 1

    Correct Answer: B

    Solution :

                    Required probability \[=\left( \frac{1}{2} \right)\text{ }\left( \frac{1}{2} \right)=\frac{1}{4}.\]


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