摘要
介绍了两个相互独立的连续型随机变量之和的概率密度的计算难点及求解对策．提出一种用于计算概率密度的方法．该方法直观自然、计算方便快捷、准确、易于掌握．消除了直接计算时被积函数解析式难以准确确定的麻烦．
In this paper, the difficulty and contermeasure for solving the probability density function of the sum of two independent continuous type random variable is presented, and a new computing method -graphical method is given. The graphical method is very natural, easy to calculate and accurate. It diminated the difficulty for integrand to be determined when calculated directly.
出处
《天津理工学院学报》
1998年第4期79-82,共4页
Journal of Tianjin Institute of Technology
