The Coefficient of Determination (VCE SSCE General Mathematics): Flashcards

$r^2$

Proportion of variation explained in one variable by another

$0$ to $1$ or $0\%$ to $100\%$

Yes, even if $r$ is negative

$r = 1$ or $r = -1$

$r \approx 0$

$64\%$ of weight variation explained by height

Take square root; check scatterplot for sign

Excellent predictor; most variation explained

$64\%$