From Wikipedia, the free encyclopedia
四分位數(quartile)係描述統計學嘅一個概念。一柞數據嘅下四分位數(lower quarter / 25th quartile)係指最細數值同數據整體中位數之間嘅中位數,而柞數據嘅上四分位數(upper quarter / 75th quartile)係指最大數值同數據整體中位數之間嘅中位數。
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