Scatterplots

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 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 linear association?

Back

A linear association is when the data points in a scatterplot can be approximated by a straight line.

Front

What is a nonlinear association?

Back

A nonlinear association is when the data points in a scatterplot do not follow a straight line and may curve or cluster.

Front

What does the strength of an association refer to?

Back

The strength of an association refers to how closely the data points cluster around a line or curve. It can be strong, moderate, or weak.

Front

What is a weak association?

Back

A weak association means that the data points are spread out and do not closely follow a pattern.

Front

What is a strong association?

Back

A strong association means that the data points are closely clustered around a line or curve, indicating a clear relationship.

Front

What does it mean if a scatterplot has clusters?

Back

Clusters in a scatterplot indicate that there are groups of data points that are close together, suggesting a possible relationship among those points.

Front

What is the purpose of analyzing scatterplots?

Back

Analyzing scatterplots helps to identify relationships between variables, including direction, form, and strength of the association.