Correlation Experimentation

Have students experiment by moving the ten data points and watching the impact on the correlation coefficient. Good experiments for discussion: See how an outlier affects the correlation. See how a curved graph (parabola or exponential or sinusoidal, for instance) affects the correlation. Try arranging the points in a horizontal line.

 

Michael Buescher

 
Material Type
Activity
Tags
correlation  coefficient  scatterplot 
Target Group (Age)
15 – 18
Language
English (United States)
 
 
GeoGebra version
4.2
Views
4924
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