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))。
Life is short, and it's up to you to make it sweet.
"Change is the essential process of all existence."
You are God, and your imagination is divine.
Sometimes the hardest thing in life is to know which bridge to cross and which to burn.
战争不是解决问题的手段，只是表明问题的失败。
Innovation is not just about creating new products, but about reimagining how we solve old problems.
创新不仅仅是创造新产品，而是重新构想我们如何解决老问题。