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9th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    Direction: Study the bar diagram given below carefully and answer the following questions based on it.
    By how much percent is the birth rate of Japan less than the birth rate of Australia?

    A)  30%                            

    B)  \[33\frac{1}{3}%\]

    C)  45%                            

    D)  50%

    Correct Answer: B

    Solution :

    (b): Birth rate of Japan = 20 Birth rate of Australia = 30 Required percentage \[=\frac{30-20}{30}\times 100=\frac{100}{3}%\] \[=33\frac{1}{3}%\]


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