A scatter plot shows paired data as points on a coordinate grid, one variable on each axis. Its purpose is to reveal whether the two variables move together, and how tightly.
Math Dictionary / Scatter Plot
Scatter Plot
A scatter plot displays paired numerical data as points on a coordinate plane.
StatisticsGrade 8Algebra 1GEDSATACT
What it means
It helps show whether two quantities have a pattern or relationship.
Also called: scatter graph
Examples
| Hours studied vs. test score |
| Height vs. arm span |
| Temperature vs. ice cream sales |
Common mistake
A scatter plot shows association, but association alone does not prove cause.
Try one
Question: If points rise from left to right, what kind of association is shown?
Show answer
A positive association.