7th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-10

  • question_answer
    Find the mean of following distribution.
    x 5 10 15 20 25 30 35 40 45
    f 1 2 5 7 4 6 3 8 9

    A)  27.63              

    B)  27.34

    C)  30       

    D)  27.27

    E)  None of these

    Correct Answer: C

    Solution :

     Not Available               


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