将z分数转换为百分比的函数 [英] Function to convert a z-score into a percentage

问题描述

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Google doesn't want to help!

我能够计算z得分，并且我们试图生成一个函数，该函数给出z得分可以使我们按正态分布的总人口百分比位于该z得分之下.我所能找到的只是对百分比表的z分数的引用.

I'm able to calculate z-scores, and we are trying to produce a function that given a z-score gives us a percent of the population in a normal distribution that would be under that z-score. All I can find are references to z-score to percentage tables.

有指针吗?

推荐答案

是此z得分(链接)您在说什么?

如果是这样，您要查找的函数称为正态累积分布，有时也称为错误函数(尽管Wikipedia对这两者的定义略有不同).如何计算它取决于您所使用的编程环境.

If so, the function you're looking for is called the normal cumulative distribution, also sometimes referred to as the error function (although Wikipedia defines the two slightly differently). How to calculate it depends on what programming environment you're using.

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