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🇨🇳Chinese Source WordCode: ZH

增量方差

Pronunciation / Transliteration: zēngliàng fāngchā

🇬🇧 Direct English Meaning:
Incremental variance/ˌɪŋ.krəˈmɛn.təl ˈvɛə.ri.əns/
nounCEFR C1 (Advanced)Top #28400 frequency
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🇨🇳 Example Sentence in Chinese:

"该研究计算了新变量所带来的增量方差。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The additional or marginal amount of variance explained by adding a new variable or component to a statistical model.

    "The regression analysis showed that the psychological traits contributed significant incremental variance in predicting job performance."
  2. 2

    Step-by-step or progressive changes in the dispersion of data points around their mean over time or across sequential stages.

    "Financial analysts monitored the incremental variance of quarterly returns to assess portfolio stability."
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Thesaurus & Semantic Spectrum

Linguistic Origin & Historical Etymology

Derived from the combination of 'incremental' (from Late Latin incrementum, meaning growth or increase, via increment) and 'variance' (from Latin variantia, derived from variare, to change or vary). Established as a statistical and econometric technical term in the mid-20th century to describe sequential or additive changes in dispersion or statistical models.

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