non-centralityn.

Brit.

/ˌnɒnsɛnˈtralᵻti/, U.S.

/ˌnɑnsɛnˈtrælədi/

Origin: Formed within English, by derivation. Etymons: non- prefix, centrality n.

Etymology: < non- prefix + centrality n., after non-central adj.

The property of being non-central, esp. (in Statistics) of having a non-zero mean; the degree to which something is non-central.

ΘΚΠ

the world > relative properties > number > probability or statistics > [noun] > distribution > skewness

skewness1894

non-centrality1949

skew1974

1949 Biometrika 36 196 The distribution of a non-central χ² having a non-centrality λ is given by [etc.].

1959 H. Scheffé Anal. of Variance 412 The ordinary or central chi-square distribution is the special case of the noncentral distribution when the noncentrality parameter δ = 0.

1969 H. O. Lancaster Chi-Squared Distribution xi. 231 It is required to determine the parameters of non-centrality of the test of independence in two dimensions.

2000 Proc. SPIE (Internat. Soc. Optical Engin.) 4009 366 The most important perturbations that act on these celestial bodies are: non-centrality of the gravitational field, Sun and Moon attraction, [etc.].

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	non-centrality
释义	non-centralityn. Brit. /ˌnɒnsɛnˈtralᵻti/, U.S. /ˌnɑnsɛnˈtrælədi/ Origin: Formed within English, by derivation. Etymons: non- prefix, centrality n. Etymology: < non- prefix + centrality n., after non-central adj. The property of being non-central, esp. (in Statistics) of having a non-zero mean; the degree to which something is non-central. ΘΚΠ the world > relative properties > number > probability or statistics > [noun] > distribution > skewness skewness1894 non-centrality1949 skew1974 1949 Biometrika 36 196 The distribution of a non-central χ² having a non-centrality λ is given by [etc.]. 1959 H. Scheffé Anal. of Variance 412 The ordinary or central chi-square distribution is the special case of the noncentral distribution when the noncentrality parameter δ = 0. 1969 H. O. Lancaster Chi-Squared Distribution xi. 231 It is required to determine the parameters of non-centrality of the test of independence in two dimensions. 2000 Proc. SPIE (Internat. Soc. Optical Engin.) 4009 366 The most important perturbations that act on these celestial bodies are: non-centrality of the gravitational field, Sun and Moon attraction, [etc.]. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < n.1949
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