Investigating Associations Between Two Numerical Variables (VCE SSCE General Mathematics): Flashcards

Graph showing relationship between two numerical variables

Data with two variables

Horizontal axis ($x$-axis)

Vertical axis ($y$-axis)

One case or observation

One variable increases, the other decreases

Both variables increase together

Display relationship between two numerical variables

Count the number of points

EV on $x$-axis, RV on $y$-axis