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Central Tendency & Basic Variance

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  1. 1.

    Variance of 3, 5, 7 is:

  2. 2.

    SD is measured in the same unit as:

  3. 3.

    The median of 2, 4, 6, 8 is:

  4. 4.

    Mean of 50 observations is 36. If two observations 30 and 42 are removed, the mean of remaining 48 is:

  5. 5.

    The mean of first 10 natural numbers is:

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