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apple asked in 科學工程學 · 1 decade ago

Standard deviation and sigma算法

請問關於Standard deviation(EXCEL裡的STDEV) 和 SIGMA算法的差異?!這..是一樣的東西嗎?!

2 Answers

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  • Tiger
    Lv 5
    1 decade ago
    Favorite Answer

    By definition, they should be the same terms while standard deviation (sigma) is different from standard deviation (s):

    A distinction is made between the standard deviation σ (sigma) of a whole population or of a random variable, and the standard deviation s of a subset-population sample.

    Since my 等級 is not enough to post html page here, please refer to http://en.wikipedia.org/wiki/Standard_deviation for more details.

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  • GC
    Lv 4
    1 decade ago

    Sigma (σ) 是希臘字元,表示為標準差 (Standard Deviation)的衡量。

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