单词 | gamma distribution |
释义 | > as lemmasgamma distribution gamma distribution n. a continuous statistical distribution of two parameters α and β of which the chi-squared and exponential distributions are special cases, given by f(x) = βαxα−1e−βx/ Γ(α), for x, α, β all positive, where Γ is the gamma function. ΚΠ 1937 Ann. Math. Statistics 8 152 It will often be sufficient to use the normal distribution to which the gamma distribution tends as N becomes large. 1973 Jrnl. Amer. Statist. Assoc. 68 928/1 We derive a test of whether the dependent variable follows a lognormal or a Gamma distribution. 2011 D. S. Wilks Statist. Methods in Atmospheric Sci. (ed. 3) iv. 97 The versatility in shape of the gamma distribution makes it an attractive candidate for representing precipitation data. < as lemmas |
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