Correlation, Association and Causation

77 min
Block 4 — Understanding the data before modeling
Objective
define covariance and Pearson's coefficient rigorously, state exactly what they measure and what they ignore, choose a coefficient that matches the shape of the relationship and the type of the variables, exploit a correlation matrix for preliminary triage and redundancy detection, and be able to explain why an observed association licenses no causal conclusion whatsoever.
Estimated duration
55 minutes
Prerequisites
chapters 005 (dataset structure), 006 (features and target), 013 (exploratory data analysis), 014 (descriptive statistics) and 015 (data visualization)
Associated quizzes
016.1-quiz-covariance-and-pearson.md to 016.7-quiz-correlation-and-causation.md

Preview — the rest of the lesson is for enrolled readers.

Already enrolled with a code?

Your access is tied to your account, not to this link. Sign in with the same email you used in class: your course is waiting, no need to enter the code again.

Sign inNo account yet? Create one
This lesson is part of the “Exploratory Data Analysis (EDA)” module

The first modules of the course are open to everyone. For the rest you have three options: buy this course once and for all, subscribe, or enter the code handed out in class.

Are you a student on this course?

The code is tied to your account: sign in or create an account and it will be applied automatically when you come back.

No account yet? Create one