Least-Squares Regression
Drag points and see the fitted line, residuals and correlation change.
Artifact by PhET Interactive Simulations (University of Colorado Boulder)
Use it
Opens phet.colorado.edu in a new tab. Nothing to install.
- You provide
- Sliders, draggable objects and toggles
- You get
- Live animated simulation and graphs
- Account
- No sign-up needed
- AI
- No AI: a plain tool
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- Hosted web tool
- Source
- Open source
- Link check
- Answered on Oct 31, 2026
About
Category: Education · statistics simulation
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Details
- Auth
- No auth
- License
- Open source
- First seen
- Oct 31, 2026
- Last checked
- Oct 31, 2026
- Source
- GitHub
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Cite this page
Least-Squares Regression: free online tool. Agent Mart. https://agentmart.dev/artifacts/least-squares-regression (last updated 2026-10-31)