2.2

These flashcards cover key concepts related to scatterplots, including definitions of important terms and associations between variables.

Scatterplot

A graph that shows the relationship between two quantitative variables measured on the same individuals.

Explanatory Variable

The variable plotted on the horizontal axis (x-axis) of a scatterplot.

Response Variable

The variable plotted on the vertical axis (y-axis) of a scatterplot.

Girth

The circumference of a tree measured at a specific height above the ground.

Positive Association

A relationship where above-average values of one variable tend to accompany above-average values of the other.

Negative Association

A relationship where above-average values of one variable tend to accompany below-average values of the other.

Outlier

A data point that deviates significantly from the overall pattern in a scatterplot.

Linear Relationship

A relationship depicted as a straight line on a scatterplot.

Nonlinear Relationship

A relationship that cannot be represented as a straight line on a scatterplot.

Categorical Variable

A variable that can be divided into distinct categories, used in scatterplots with different colors or symbols.

Petal Length

A quantitative measurement representing the length of a flower petal, used in examples like the Iris dataset.

Petal Width

A quantitative measurement representing the width of a flower petal, used in examples like the Iris dataset.