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The Evolution of Pearson's Correlation Coefficient

Gary Kader, Christine Franklin 

November 2008, Volume 102, Issue 4, Page 292

Abstract:
An activity for developing the notion of association between two quantitative variables. By exploring a collection of scatter plots, the authors propose a nonstandard "intuitive" measure of association; and by examining properties of this measure, they develop the more standard measure, Pearson's Correlation Coefficient. The activity is designed to help students better understand how statistical measures are "invented" and why certain measures are preferred.

Keywords:
Article
Correlation
Conceptual Development
Grades 9-12
Teacher
Lesson Plans
Problem Solving / Problem Posing
Reasoning and Proof