Ina series of observations, S.D. a 7 and mean is 28, the coefficient of variation is

Ina series of observations, S.D. a 7 and mean is 28, the coefficient of variation is

  1. A

    4

  2. B

    1/4

  3. C

    25

  4. D

    12.5

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    Solution:

    We know that

    Coefficient of variation =σX¯×100=728×100=25

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