二元函数Mills比的一些性质

On some properties of Mills ratio of binary function

二元标准正态分布的Ｍｉｌｌｓ 比是刻划正态分布的一种有用函数，由于研究问题变量之间有相关性及重积分的复杂性，使得研究问题成果很少．本文给出了二元Ｍｉｌｌｓ 比的一些性质并给出了几个不等式．

Mills ratio of binary standard normal distribution is a useful function for reflecting normal distribution, but the achievements in research are very few because of the dependence between variable quantities and the complexity of multiple integral. This paper gives some properties of binary Mills ratio and inequalities.