摘要： Let Y₁,Y₂,…,Y be mutually independent taking random yariables of positive integer value.A denote the event that Y,-Y,i>0 for all z=1,2,…,n-1.Then we show that,under condition A,Y, -Y+i and Y..are independent,for t=1,2,….K and only if Y,(z=1,2,…,K)accords with geometric distribution.Here in I≤K≤n-1.Note:the K geometric distributions can have diffrent scale parameters.
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