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 correlation in a scatterplot indicate?

Back

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

Front

What does a negative correlation in a scatterplot indicate?

Back

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

Front

What does no correlation mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one variable do not predict changes in the other.

Front

What is a weak correlation?

Back

A weak correlation means that the relationship between the two variables is not strong, and the points on the scatterplot are spread out.

Front

What is a strong correlation?

Back

A strong correlation means that the relationship between the two variables is strong, and the points on the scatterplot are closely clustered.

Front

What is a linear association in a scatterplot?

Back

A linear association means that the data points can be approximated by a straight line.

Front

What is a nonlinear association in a scatterplot?

Back

A nonlinear association means that the data points do not follow a straight line and may form a curve.

Front

How can you identify a positive linear association in a scatterplot?

Back

A positive linear association is identified when the points slope upwards from left to right.

Front

How can you identify a negative linear association in a scatterplot?

Back

A negative linear association is identified when the points slope downwards from left to right.