解决二维连续型随机变量函数分布的一种方法

ONE METHOD TO SEEK THE SOLUTIONS OF THE DISTRIBUTIONAL FUNCTION FOR THE CONTINUOUS STOCHASTIC VARIABLE OF TWO-DIMENSION

讨论二维连续型随机变量的和、差、积、商分布函数时,可先求出它们的密度函数,然后利用分布函数是密度函数的积分这一关系,即可求出其分布函数。

This essay mainly talks about the distributional function of the sum difference, product and quotient for the continuous stochastic variable of two dimension. To seek their solutions,I work out their density function at the first step,then use the distributional function being the integral relation of density function,I can seek the solution of its distributional function.