Tu, YK., Kellett, M., Clerehugh, V. et al. Problems of correlations between explanatory variables in multiple regression analyses in the dental literature. Br Dent J 199, 457–461 (2005 ...

But once you add at least one independent variable, like fuel prices or travellers’ purchasing power, this would be an example of multiple regression analysis. #2 Lasso regression Source: cvxpy.org ...