“population covariance”的概念、定义、翻译、参考文献-科学参考

单词	population covariance
释义	population covariance [´päp·yǝ`lā·shǝn kō`ver·ē·ǝns] ^STATISTICS The number (1/N )[(v₁ - v̄ )(w₁ - w ) + ... + (v_N - v̄ )(w_N - w )], where v_i and w_i , i = 1, 2, ..., N, are the values obtained from two populations, and v̄ and w are the respective means.
随便看	electron optics electron orbit electron pair electron pair bond electron paramagnetic resonance electron paramagnetism electron-positron pair electron-positron storage ring electron probe electron probe x-ray microanalysis electron radiography electron radius electron-ray indicator electron-ray tube electron refraction electron rest mass electron ring accelerator electron shell electron spectroscopy electron spectroscopy for chemical analysis electron spectrum electron spin electron spin density electron spin resonance electron stain

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