Home · Unit 3 · Topic 1 · Identifying and describing associations between two numerical variables

Identifying and describing associations between two numerical variables

Calculate the coefficient of determination, 2, from raw data using technology, and interpret it to assess the strength of a linear association in terms of the explained variation.

gm-u3-t1-s2-d5

Interactive

r² as explained variation

manipulative

r² is the fraction of total vertical scatter from ȳ that the least-squares line accounts for — leftover residuals over total.

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