Sum of residuals gives line of best fit?

This is a visual argument why we can't define the line of best fit as the line which makes the sum of residuals equal to 0. Why? There are infinitely many such lines, one for each value of the slope. Try it out, then try out[url=http://www.geogebratube.org/student/m27108]a better line of best fit[/url].

 

timteachesmath —

 
Tipo di risorsa
Attività
Tag
least  magic  regression  residuals  squares 
Gruppo di riferimento (età)
15 – 18
Lingua
English (United States)
 
 
Versione di GeoGebra
4.0
Viste
3850
Contatta l'autore della risorsa
 
 
© 2026 International GeoGebra Institute