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9th Class Mathematics Statistics Question Bank Statistics

  • question_answer
    P Find the class mark of the class 90 -120.

    A)  90                              

    B)  105                

    C)  115                

    D)    120

    Correct Answer: B

    Solution :

    Given, Class = 90-120 Class mark \[=\frac{90+120}{2}=\frac{210}{2}=105\] Hence, the required class mark is 105.


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