摘要
本文直接利用积分推导出了二维连续型随机变量函数Z=g(X,Y)的密度函数的计算公式并进行了推广,同时介绍了比文献[1]更简捷的确定积分限的方法.
This article comes to the computational formula about the density＇function formula for the function in two random variable of continuity Z=g（X,Y）,which is spread by indirect use of integral ;meanwhile,this article introduces a simpler method which limits the integral scope than that in Decument 1.
出处
《数学理论与应用》
2005年第4期94-96,共3页
Mathematical Theory and Applications
关键词
二维随机变量函数
密度函数
积分限
分布密度
function in two random variable density＇s function establishment of the integral scope
