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조화 평균
날짜
$latex {A\text{ }=\text{ }\frac{{{ \sum {x\mathop{{}}\nolimits_{{i}}f\mathop{{}}\nolimits_{{i}}}}}}{{{ \sum {f\mathop{{}}\nolimits_{{i}}}}}} \Leftrightarrow \frac{{1}}{{\frac{{{ \sum {f\mathop{{}}\nolimits_{{i}}}}}}{{{ \sum {x\mathop{{}}\nolimits_{{i}}f\mathop{{}}\nolimits_{{i}}}}}}}}\mathop{{ \Longleftrightarrow }}\limits^{{\text{설정}\text{ }m\mathop{{}}\nolimits_{{i}}=x\mathop{{}}\nolimits_{{i}}f\mathop{{}}\nolimits_{{i}}}}\frac{{1}}{{{\frac{{{ \sum {\frac{{m\mathop{{}}\nolimits_{{i}}}}{{x\mathop{{}}\nolimits_{{i}}}}}}}{{{ \sum {m\mathop{{}}\nolimits_{{i}}}}}}}}\Leftrightarrow \frac{{{ \sum {m\mathop{{}}\nolimits_{{i}}}}}}{{{ \sum {\frac{{m\mathop{{}}\nolimits_{{i}}}}}{{x\mathop{{}}\nolimits_{{i}}}}}}}\text{ }=\text{ }H}$
$latex {H\text{ }=\text{ }\frac{{{\mathop{ \sum }\nolimits_{{i=1}}^{{n}}{m\mathop{{}}\nolimits_{{i}}}}}}{{{\mathop{ \sum }\nolimits_{{i=1}}^{{n}}{\frac{{m\mathop{{}}\nolimits_{{i}}}}{{x\mathop{{}}\nolimits_{{i}}}}}}}}$
$latex {m\mathop{{}}\nolimits_{{i}}\text{ }=\text{ }1}$인 경우 공식은 단순 조화 평균 공식으로 변환됩니다.
$latex {H\text{ }=\text{ }\frac{{n}}{{{\mathop{ \sum }\nolimits_{{i=1}}^{{n}}{\frac{{1}}{{x\mathop{{}}\nolimits_{{i}}}}}}}}\text{ }=\text{ $