V2EX decile

Decile

发音 Pronunciation

/ds.al/

释义 Definition

Decile 是统计学术语,指将一组数据按大小排列后等分为十份的每一个分割点,或指这十等份中的任意一段。常用于描述数据分布中某个值所处的相对位置,例如"第九十百分位"对应"第九个十分位"。

例句 Examples

He scored in the top decile on the national exam.
他在全国考试中的成绩位于前十分之一。

Households in the lowest income decile spend a larger proportion of their earnings on food than those in the highest decile.
收入最低十分位的家庭在食物上花费的收入比例,要高于收入最高十分位的家庭。

词源 Etymology

Decile 源自拉丁语 decimus,意为"第十",词根 decem 意为"十"。该词在20世纪初被引入英语,主要用于统计学领域,仿照 quartile(四分位数)和 percentile(百分位数)的构词方式而创造。拉丁语词根 decem 还衍生出许多常见英语词汇,如 decade(十年)、December(十二月,古罗马历法中的第十个月)等。

相关词汇 Related Words

文学与学术引用 Literary References

  • 在 Thomas Piketty 的经济学著作 Capital in the Twenty-First Century(《21世纪资本论》)中,decile 被大量使用,用以分析不同收入阶层的财富分配情况。
  • 在社会科学和公共政策研究论文中,decile 是描述收入不平等、教育水平差异和健康指标分布的核心术语。
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