Module 3 Pt 6: Scatterplots

Scatterplot

Graph showing relationship between two numeric variables

Outliers

Points deviating from the overall pattern

Direction of Association

Positive, negative, or no relationship between variables

Positive Association

Values of one variable increase as values of the other increase

Negative Association

Values of one variable decrease as values of the other increase

No Association

Knowing one variable gives no information about the other

Strength of Association

Describes how closely variables are associated

Strong Relationship

Variables are tightly packed in a scatterplot

Moderate Relationship

Variables have a moderate closeness in a scatterplot

Weak Relationship

Variables have a weak closeness in a scatterplot

Linear Trend

Pattern showing a straight line in a scatterplot

Curved Trend

Pattern showing curves in a scatterplot

Strength of Association Scale

Qualifiers like strong, moderate, weak to describe closeness

Scatterplot DOTS

Acronym for Direction, Outliers, Trend, Strength in scatterplots