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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-12

  • question_answer
    Find the mean of the following data:
    Class Interval Frequency
    0 - 10 7
    10 - 20 8
    20 - 30 12
    30 - 40 13
    40 - 50 10

    A)  25.60              

    B)  24.80

    C)  23.30              

    D)  27.20

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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