More on regression

This course is a part of AP®︎ Statistics, a 17-course Topic series from Khan Academy.

Learn how to perform inference on slope in least-squares regression. We'll make confidence intervals and do significance tests to see if a linear relationship in a sample suggests a relationship exists in the corresponding population.

This course contains 2 segments:

Inference about slope

We'll make confidence intervals to estimate slope based on sample data. We'll also do significance tests about slope to see if a sample slope is significantly different than 0.

Transformations to achieve linearity

When we have a nonlinear relationship, we can often use logarithms, powers, and roots to transform the data so the relationship becomes linear. This allows us to use least-squares regression and do other inference procedures that we're already familiar with.