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10th Class Mathematics Statistics Question Bank Self Test-11

  • question_answer
    The data given below represents the number of text book printed during the different hours of the day by a machine. Find the standard deviation of the printing by the machine during the day.
    Hours: 2 4 6 8 10 12 14 16
    No. of book: 4 4 5 15 8 5 4 4

    A)  4.28

    B)  3.78 

    C)  4.01

    D)  3.88

    E)  None of these

    Correct Answer: D

    Solution :

       


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