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 is an outlier 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 does a positive correlation indicate in a scatterplot?

Back

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

Front

What does a negative correlation indicate in a scatterplot?

Back

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

Front

What does no association mean in a scatterplot?

Back

No association means there is no discernible relationship between the two variables in the scatterplot.

Front

How can you identify a strong positive correlation in a scatterplot?

Back

A strong positive correlation is identified when the points in the scatterplot closely follow a straight line that slopes upwards.

Front

How can you identify a weak positive correlation in a scatterplot?

Back

A weak positive correlation is identified when the points in the scatterplot are scattered but still trend upwards.

Front

What does a strong negative correlation look like in a scatterplot?

Back

A strong negative correlation is identified when the points in the scatterplot closely follow a straight line that slopes downwards.

Front

What does a weak negative correlation look like in a scatterplot?

Back

A weak negative correlation is identified when the points in the scatterplot are scattered but still trend downwards.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure of the strength and direction of a relationship between two variables, ranging from -1 to 1.