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10th Class Mathematics Probability Question Bank MCQs - Probability

  • question_answer
    If the probability of an event is p, the probability of its complementary event will be:   (NCERT EXEMPLAR)

    A) \[p-1\]

    B) \[p\]

    C) \[1-p\]

    D) \[1-\frac{1}{p}\]

    Correct Answer: C

    Solution :

    [c] Since, probability of an event + probability of its complementary event =1
    So, probability of complementary event \[=1-\]probability of an event \[=1-p\].
       


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