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指数分布与几何分布的条件可加性

Additivity of Exponential Distribution and Geometric Distribution under Certain Condition
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摘要 首先证明了独立指数分布随机变量之和的一个条件分布是指数分布,然后证明了独立几何分布随机变量的一个线性组合的一个条件分布是几何分布. In the paper,it was proved that a conditional distribution of sum of independent exponential random variables is exponential distribution,and it was also proved that a conditional distribution of a linear combination of independent geometric distribution variables is still geometric distribution.
作者 何朝兵
出处 《海南大学学报(自然科学版)》 CAS 2012年第1期20-25,共6页 Natural Science Journal of Hainan University
基金 河南省教育厅自然科学基金资助项目(2009B110003)
关键词 指数分布 几何分布 相互独立 条件分布 可加性 exponential distribution geometric distribution independent conditional distribution additivity
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