Lesson 3
The simple regression equation
Big question
How do we read the simple regression equation in plain language?
Lesson progress
Complete checkpoints as you learn
Learning objectives
- Explain the simple regression equation 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 read the simple regression equation in plain language?
Key terms
Example
How do we read the simple regression equation in plain language?
Python walkthrough
Interactive activity
Formula diagram
Click each part of the model to see what it means.
y: outcome
The dependent variable we want to explain.
Equation builder
Select the pieces in order to build the simple regression model.
Build the equation in this order: outcome, intercept, slope times x, error term.
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 The simple regression equation?
Key takeaway
Use this lesson idea in a cautious, evidence-based regression interpretation.