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JEE Main & Advanced Mathematics Statistics Question Bank Self Evaluation Test - Statistics

  • question_answer
    If the mean of few observations is 40 and standard deviation is 8, then what is the coefficient of variation?

    A) 1%

    B) 10%

    C) 20%

    D) 30%

    Correct Answer: C

    Solution :

    [c] Mean = 40, S.D = 8 \[\therefore \] Coeft of variation \[=\frac{8}{40}\times 100\] \[=\frac{1}{5}\times 100=20%\]


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