In a Simple linear regression model, I have only Sxy and Syy data with me. How shall I derive Sxx , linking Sxy and Syy based on first principles? I know the formulas separately. I want to find Sxx ,... 求大神解答，β1中那个mxy和mxx 还有sxy sxx分别表示什么意思？ 还有最后一列的方差为什么这么求，都代表什么？ 谢谢大神解答 [图片] 显示全部 关注者 2 被浏览 You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What's reputation and how do I get it? Instead, you can save this post to reference later. What is the meaning of the symbols $S_{xx}$ and $S_{xy}$ in simple linear regression? I know the formula but what is the meaning of those symbols?
