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TAG: mean
Mean
2016/03/06 04:59
Hyo Kim
Mean $$ \bar{X} = \frac {\sum\limits_{i=1}^n X_i}{n} $$ * $\bar{X}$ = 표본평균 * $n$ = 관측치의 수 (샘플 숫자) * $X_i$ = 관측치 * Nominal, Ordinal 측정치에는 사용할 수 없음 …
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