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))。

I like to think of my work as a kind of translation between different systems and contexts.

The act of naming is the first act of creation.

【释义】：当面赞誉他人的人往往不够忠诚，只注重外表修饰的人往往缺乏真情实意。