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总览 评价 陈必红 * ( 深圳大学数学学院,广东 深圳 518026; ) 摘要: 本文提出一种对随机变量的研究分析方法,就是将实数轴切割成互不相交的若干个可测集合,在这些集合上随机变量的概率都不为零,研究在不同集合中此随机变量的条件分布,这些条件分布的
陈必红*
(
深圳大学数学学院,广东 深圳 518026; )
摘要:
本文提出一种对随机变量的研究分析方法,就是将实数轴切割成互不相交的若干个可测集合,在这些集合上随机变量的概率都不为零,研究在不同集合中此随机变量的条件分布,这些条件分布的性质和数字特征,它们的函数的性质。而反过来也给出了将若干个不同的随机变量通过条件再组合成一个随机变量的反运算。用这样方法可以简化许多概率论的解题,及更容易地证明一些概率论的常用定理,可以对概率论的理论做更深入的研究。
关键词:
概率分布;条件分布;条件切割
CHEN Bihong*
(
Mathematical Schol, Shen Zhen Univarsity, GuangDong ShenZhen 518060; )
Abstract:
In this paper, a analysis method to a random variable is put out. The entire real axis is cut to some measurable sets which are disjoint. The probability of the random variable on every set is not zero. Then the random variable can be researched by conditional distributions on these sets. The conditional distributions can be researched by their nature, digital characteristics and function. And conversily some random variables can be combinationed by different conditions. Using such method, a lot of problems of probability theory can be simplified, and some commonly theorem can be proofed more easy, and a lot of deep research can be done.
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