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 it mean if there is no obvious pattern in the points of a scatterplot?

Back

It indicates 'No Association' between the variables.

Front

How would you describe a strong positive linear association in a scatterplot?

Back

As the values of x increase, the values of y also increase in a consistent manner, forming a straight line that slopes upwards.

Front

What is a negative association in a scatterplot?

Back

As the values of x increase, the values of y decrease, forming a straight line that slopes downwards.

Front

What is an outlier in a scatterplot?

Back

An outlier is a piece of data that is far from the rest of the data points, which can affect the overall analysis.

Front

What does a positive association indicate?

Back

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

Front

What does a negative association indicate?

Back

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

Front

What is a trend line in a scatterplot?

Back

A trend line is a straight line that best represents the data on a scatterplot, showing the general direction of the data points.

Front

What is the slope of a line in a scatterplot?

Back

The slope indicates the rate of change between the two variables; a positive slope indicates a positive association, while a negative slope indicates a negative association.

Front

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

Back

A cluster indicates that there are groups of data points that are close together, suggesting a possible relationship between the variables.