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10th Class Mathematics Probability Question Bank MCQs - Probability

  • question_answer
    In a family having three children, there may be no girl, one girl, two girls or three girls. So, the probability of each is \[\frac{1}{4}\]. Is it true?

    A) True

    B) False

    C) Data insufficient

    D) None of these

    Correct Answer: B

    Solution :

    Let boys be B and girl be G Outcomes can be BBB, GGG, BBG, BGB, GBB, GGB, GBG, BGG Then, probability of 3 girls \[=\frac{1}{8}\] Probability of 0 girls \[=\frac{1}{8}\] Probability of 2 girls \[=\frac{3}{8}\] Probability of 1 girls \[=\frac{3}{8}\]


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