# Time Series Regression Correlation

If I recall correctly, the equation for $R^2$ is $\frac{SST-SSE}{SST}$

So is the answer simply, $\frac{60-40}{60}=\frac{1}{3}$?

• Refer to the book of Douglas C. Montgomery on Introduction to Linear Regression Analysis. Oct 11, 2015 at 6:04