We don't know what the true difference of these two population parameters are.
我们不知道这两个人口参数的真正区别是什么。
可汗学院:统计学(视频版)
Maybe there's some huge study and this was the best estimate of what the population parameters are.
也许有一些庞大的研究,这是对人口参数的最佳估计。
英语百科
Statistical parameter
(重定向自Population parameter)
A statistical parameter is a parameter that indexes a family of probability distributions. It can be regarded as a numerical characteristic of a population or a statistical model.