Lesson 6
Covariance and correlation
Big question
How do we describe whether two variables move together?
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Big question
Concept
Activity
Quiz
Learning objectives
- Explain covariance and correlation in plain language.
- Use the main concept correctly.
- Connect the lesson idea to a formula, graph, Python result, or real example.
Simple explanation
How do we describe whether two variables move together?
Key terms
Example
How do we describe whether two variables move together?
Python walkthrough
Checkpoint activity
Pause and explain this lesson's main idea in your own words before moving forward.
Try it yourself
Write one plain-English sentence explaining the main idea from this lesson.
Common mistakes
Check these before you move on.
A regression coefficient describes a pattern unless the assumptions or research design support a causal interpretation.
Quick quiz
What is the main idea of Covariance and correlation?
Key takeaway
Use this lesson idea in a cautious, evidence-based regression interpretation.