两两PQD序列部分和之和的弱大数律  

Weak law of large numbers for sum of partial sums of pairwise PQD sequence of random variables

作　　者：沈建伟[1] 

机构地区：[1]浙江科技学院理学院,杭州310023

出　　处：《浙江科技学院学报》2013年第6期409-413,共5页Journal of Zhejiang University of Science and Technology

摘　　要：利用随机变量的截尾方法和两两PQD序列的矩不等式,得到了矩条件下两两PQD序列部分和之和的弱大数律,该结果去除了随机变量对称同分布的限制条件,推广了若干已有的弱大数律。The weak law of large numbers for sum of partial sums of pairwise PQD sequence of random variables is obtained under the moment conditions by the truncation methods of random variables and moment inequalities of pairwise PQD sequence.The available results which eliminate the restriction of symmetric random variable and identical distribution extend to some known theorems.

关 键 词：两两PQD序列 部分和之和 弱大数律 截尾 

分 类 号：O211.4[理学—概率论与数理统计]