A united-set formula
نویسندگان
چکیده
منابع مشابه
A formula for the correlation between random-set enrichment scores
Given constants s1, s2, . . . , sG, we consider variables X = ∑ sg1[g ∈ A] and Y = ∑ sg1[g ∈ B] as random variables with a joint distribution determined by taking (A,B) as uniformly random among set pairs in which A has fixed cardinality m, B has fixed cardinality n, and the intersection A ∩ B has fixed size q. Arguments about without-replacement sampling give the marginal mean and variance of ...
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ژورنال
عنوان ژورنال: Bulletin of the American Mathematical Society
سال: 1983
ISSN: 0273-0979
DOI: 10.1090/s0273-0979-1983-15107-8