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10th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-19

  • question_answer
    If the mean of the following distribution is 54, then find the value of f.
    Class interval Frequency
    0 - 20 7
    20 - 40 11
    40 - 60 10
    60 - 80 f
    80 - 100 13

    A)  6                                

    B)  7

    C)  8                                

    D)  9

    E)  None of these

    Correct Answer: D

    Solution :

     Not Available


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