Scatterplots

Front

What is a scatterplot?

Back

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

Front

What does an outlier represent in a scatterplot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs in a scatterplot.

Front

What type of correlation exists when both variables increase together?

Back

Positive correlation.

Front

What type of correlation exists when one variable increases while the other decreases?

Back

Negative correlation.

Front

What does 'no correlation' mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables being plotted.

Front

How can you identify a positive correlation in a scatterplot?

Back

A positive correlation is identified when the points tend to rise from left to right.

Front

How can you identify a negative correlation in a scatterplot?

Back

A negative correlation is identified when the points tend to fall from left to right.

Front

What does a linear relationship in a scatterplot indicate?

Back

A linear relationship indicates that the data points can be approximated by a straight line.

Front

What is the purpose of a scatterplot?

Back

The purpose of a scatterplot is to visually display the relationship between two variables and to identify any patterns or trends.

Front

What does it mean if a scatterplot shows no association?

Back

It means that there is no discernible pattern or relationship between the two variables.