What does a regression analysis tell you?
It reveals the form of relationship between variables.
Please refer to my reply on What is a regression analysis?.
It reveals the form of relationship between variables. For example, whether the relationship is strongly positively related, strongly negatively related or there is no relationship.
For example, rainfall and agriculture productivity are supposed to be strongly correlated but relation is not known. If we identify crop yield to denote agriculture productivity, and consider two variables crop yield
Construction of regression line of