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Math Help - derivation for standard deviation

  1. #1
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    Smile derivation for standard deviation

    How to derive the formula for standard deviation? Thank you.
    Last edited by arangu1508; September 12th 2011 at 09:34 AM. Reason: to use the correct language for easy understanding
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  2. #2
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    Re: derivation for standard deviation

    Start from the definition of "standard deviation". What is that?
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  3. #3
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    Re: derivation for standard deviation

    the Deviation of given data from the mean or average. Am I correct?
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