Scatterplots Association Flashcard

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 does 'no association' mean in the context of scatterplots?

Back

'No association' means that there is no discernible relationship between the two variables; changes in one variable do not predict changes in the other.

Front

What is a linear association?

Back

A linear association is a relationship between two variables that can be represented by a straight line on a scatterplot.

Front

What is a non-linear association?

Back

A non-linear association is a relationship between two variables that cannot be represented by a straight line; the relationship may curve or change direction.

Front

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

Back

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

Front

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

Back

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

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are points that fall far away from the other data points and can significantly affect the interpretation of the association.

Front

What does it mean if a scatterplot shows a cluster of points?

Back

A cluster of points indicates that there is a concentration of data points in that area, suggesting a stronger relationship between the variables.