Scatter plots are diagrams ... compared with the simple linear regression including only age. This tells us that there is an interplay between the two explanatory variables and highlights the ...

Take a look at the graph below ... this is just a simple regression and there are models that you can build that use several independent variables called multiple linear regressions.

The purpose of this tutorial is to continue our exploration of regression by constructing linear models with two or more explanatory ... 4.01 on 94 degrees of freedom ## Multiple R-squared: 0.8271, ...