Regression versus correlation

At the beginning of the chapter, we said that regression analysis is a statistical process for studying the relationship between variables. When considering two or more variables, one can examine the type and intensity of the relationships that exist between them. In the case where two quantitative variables are simultaneously detected for each individual, it is possible to check whether they vary simultaneously and what mathematical relationship exists between them.

The study of such relationships can be conducted through two types of analysis: regression analysis and correlation analysis. Let's understand the differences between these two types of analysis.

Regression analysis develops a statistical model that ...

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