The probable error of a correlation coefficient obtained from a sample of n pairs of observations is sqrt((1-r²)/(n-2)).
从n对观测值的样本中获得的相关系数的可能误差是sqrt((1-r²)/(n-2))。
即使没人相信你,也要相信自己。
译文:虚心又不骄傲,是福报的根本所在。傲气满怀、缺乏宽容的人,不会有什么远大的根器,纵使发达,也不会长久。
When I am abroad, I always make it a rule never to criticize or attack the government of my own country。 I make up for lost time when I come home.
要描写生活,首先你得生活。