If the observations 2,4,8 and 16 occur 8, 6,4 and 2 times respectively, then the geometric mean of the observations is

 If the observations 2,4,8 and 16 occur 8, 6,4 and 2 times respectively, then the geometric mean of the observations is

  1. A

    8

  2. B

    42

  3. C

    4

  4. D

    None of these

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    Solution:

     we know

    Geometric mean =x1×x2××xnn=28×46×84×16220=28×212×212×2820=24020=24020=22=4

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