Scatterplots Flashcard Review

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that differs significantly from other observations in the dataset, often appearing far away from the cluster of points.

Front

How do you identify outliers on a scatterplot?

Back

Outliers can be identified by looking for points that are distant from the overall pattern of the data.

Front

What does a positive association in a scatterplot indicate?

Back

A positive association indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative association in a scatterplot indicate?

Back

A negative association indicates that as one variable increases, the other variable tends to decrease.

Front

What is a cluster in a scatterplot?

Back

A cluster is a group of points that lie close together on the scatterplot, indicating a concentration of data.

Front

What does it mean if a scatterplot shows no association?

Back

No association means that there is no discernible pattern between the two variables; the points are scattered randomly.

Front

What is the purpose of a scatterplot?

Back

The purpose of a scatterplot is to visually represent the relationship between two quantitative variables.

Front

How can you determine the strength of a relationship in a scatterplot?

Back

The strength of a relationship can be determined by how closely the points cluster around a line; a tighter cluster indicates a stronger relationship.

Front

What is a linear relationship in a scatterplot?

Back

A linear relationship is one where the data points can be approximated by a straight line.