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 * [http://www.sciencetimes.co.kr/data/article/8000/0000007299.jsp 전체를 나타내는 하나, 대표값]  * [[http://www.sciencetimes.co.kr/data/article/8000/0000007299.jsp|전체를 나타내는 하나, 대표값]]

평균. Mean

산술평균 (arithmetic mean)

$$ \overline{x} = \frac{1}{n} \sum_{i=1}^n x_i $$

기하평균 (geometric mean)

$$ \overline{x} = \sqrt[n]{ \prod_{i=1}^n x_i } $$

조화평균 (harmonic mean)

$$ \overline{x} = \frac{n}{ \sum_{i=1}^n \frac{1}{x_i} } $$

관련 설명

Mean (last edited 2011-08-03 11:00:44 by localhost)