Afsnitsforfatter: Danielle J. Navarro and David R. Foxcroft

Summary

• Want to know how strong the relationship is between two variables? Calculate a correlation

• Drawing scatterplots

• Basic ideas in linear regression and how regression models are estimated

• Multiple linear regression

• Measuring the overall performance of a regression model using *R*²

• Hypothesis tests for regression models

• Calculating confidence intervals for regression coefficients and standardised coefficients

• The assumptions of regression and how to check them

• Selecting a regression model