Scatter Plots and Associations

Flashcards covering definitions and characteristics of scatter plots, positive, negative, and no associations, pattern identification, and outliers.

Scatter Plot

A graph that puts 1 point for each pair of values to show whether two things are related, where each point shows an $x$-value (horizontal) and a $y$-value (vertical) simultaneously, and dots are not connected.

Positive Association

A pattern where as $x$-values go up, $y$-values go up, causing points to climb from left to right (for example, hours studied vs. score).

Negative Association

A pattern where as $x$-values go up, $y$-values go down, causing points to fall from left to right (for example, hours of TV vs. score).

No Association

A condition with no pattern where dots scatter randomly (for example, shoe size vs. test score).

Direction

A way to identify patterns in a scatter plot categorized as up, down, or neither.

Strength

A pattern characteristic describing whether dots hug a line tight or are spread wide (weak).

Outlier

A single dot sitting far above the rest of the data points.