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Define Arithmetic mean....

Define Arithmetic mean.

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Knowledge Check

  • If random error in the arithmetic mean of 100 observations is x, then the randow error in the arithmetic mean of 500 observations would be

    A
    5x
    B
    `x//5`
    C
    25x
    D
    `x//25`

  • Arithmetic mean of a series is 15 and if 5 is added in all the items of this series, the new arithmetic mean will be:

    A
    5
    B
    20
    C
    18
    D
    10

  • if the randon error in the arithmetic mean of 50 observations is alpha , then the random error in the arithmetic mean of 150 observations would be

    A
    `alpha`
    B
    `3alpha`
    C
    `(alpha)/(3)`
    D
    `2alpha`

    • Similar Questions

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    The random error in the arithmetic mean of 100 observations is x, then random error in the arithmetic mean of 400 observations would be

    Weighted Arithmetic Mean

    Arithmetic mean of a series is 15 and if 5 is added in all the items of this series, the new arithmetic mean will be:

    What is the Arithmetic mean of the first'n' natural numbers ?

    By which formula is combined arithmetic mean estimated?

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