Pearson’s Correlation Coefficient (r) (VCE SSCE General Mathematics): Quizzes

Between $-1$ and $+1$

How closely points cluster around a line

Both variables must be numerical

Perfect positive linear association

Sign shows direction; magnitude shows strength

Strong positive association

Moderate negative association

Before calculating $r$ to confirm linearity

No, correlation does not imply causation

Very sensitive, especially for small datasets