How to calculate Standard Deviation?

How to calculate Standard Deviation?Thanks!

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  • c
    Lv 4
    1 decade ago
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    SD eual to the square root of the variance, whereas variance equal to the average of the squared differences between data points and the mean.

    2007-09-14 18:21:55 補充:

    i mean SD equal to the square root of the variance, whereas variance equal to the average of the squared differences between data points and the mean.

    Source(s): me
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