Least-Squares Regression
About
Topics
- Linear Regression
- Correlation
- Residuals
- Outlier
- Data
Description
Create your own scatter plot or use real-world data and try to fit a line to it! Explore how individual data points affect the correlation coefficient and best-fit line.
Sample Learning Goals
- Interpret r (the correlation coefficient) as data points are added, moved, or removed.
- Interpret the sum of the squared residuals while manually fitting a line.
- Interpret the sum of the squared residuals of a best-fit line as a data point is added, moved, or removed.
- Compare the sum of the squared residuals between a manually fitted line and the best-fit line.
- Determine if a linear fit is appropriate.
Keywords
For Teachers
Teacher Tips
Overview of sim controls, model simplifications, and insights into student thinking ( PDF ). |
Teacher-Submitted Activities
Title | Authors | Level | Type | ||
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How do PhET simulations fit in my middle school program? | Sarah Borenstein | MS | Other | ||
Alignment of PhET sims with NGSS | Trish Loeblein | HS | Other | ||
MS and HS TEK to Sim Alignment | Elyse Zimmer | HS MS |
Other | ||
PhET Simulations Aligned for AP Physics C | Roberta Tanner | HS | Other |
Translations
Related Simulations
Software Requirements
Windows 7+ | Mac OS 10.7+ | iPad and iPad Mini with iOS | Chromebook with Chrome OS |
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Internet Explorer 10+ latest versions of Chrome and Firefox
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Safari 6.1 and up latest versions of Chrome and Firefox
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latest version of Safari
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latest version of Chrome
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Credits
Design Team | Third-party Libraries | Thanks To |
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