Scatterplots Flashcard Review

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two numerical variables by displaying data points on a two-dimensional axis.

Front

What does a positive association in a scatterplot indicate?

Back

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

Front

What does a negative association in a scatterplot indicate?

Back

A negative association indicates that as one variable increases, the other variable decreases.

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 nonlinear association?

Back

A nonlinear association is a relationship between two variables that does not follow a straight line on a scatterplot.

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 being plotted.

Front

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

Back

The strength of a trend can be determined by how closely the data points cluster around a line; tighter clusters indicate stronger trends.

Front

What is a strong positive trend?

Back

A strong positive trend occurs when data points in a scatterplot closely follow an upward slope.

Front

What is a strong negative trend?

Back

A strong negative trend occurs when data points in a scatterplot closely follow a downward slope.

Front

What is an example of a positive linear association?

Back

An example of a positive linear association is the relationship between hours studied and test scores.