线性回归方程 \(\hat{y}=\hat{b}x+\hat{a}\)中，\(b=\frac{\overset{n}{\underset{i=1}{\sum}} x_iy_i-n\bar{x}\bar{y}}{\overset{n}{\underset{i=1}{\sum}} x_i^2-n\bar{x}^2}\)，\(a=\bar{y}-b\bar{x}\)
\(2\textcolor{blue}{H_2} + \textcolor{gray}{O_2} \xlongequal{\text{燃烧}} 2\textcolor{aqua}{H_2O}\)