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))。

The dream of every dictator is to turn his country into a prison without walls.

The architect must be a craftsman.

我对愚人有着极大的信心；我的朋友称之为自信。

I always try to push the boundaries of what is possible in film.