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 a linear relationship in a scatterplot indicate?

Back

A linear relationship indicates that as one variable increases or decreases, the other variable does so in a consistent manner, forming a straight line when graphed.

Front

What is a positive association in a scatterplot?

Back

A positive association occurs when, as one variable increases, the other variable also increases, resulting in an upward trend in the scatterplot.

Front

What is a negative association in a scatterplot?

Back

A negative association occurs when, as one variable increases, the other variable decreases, resulting in a downward trend in the scatterplot.

Front

What does 'no association' mean in a scatterplot?

Back

'No association' means that there is no discernible pattern or relationship between the two variables; the points are scattered randomly.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that is significantly different from other points in the dataset, often lying far away from the main cluster of points.

Front

What is a cluster in a scatterplot?

Back

A cluster is a group of data points that are close together, indicating a concentration of values in that area of the graph.

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified by observing if the points form a pattern that resembles a straight line.

Front

What does it mean if a scatterplot has a strong correlation?

Back

A strong correlation means that the data points closely follow a clear pattern, either positively or negatively, indicating a strong relationship between the variables.

Front

What does it mean if a scatterplot has a weak correlation?

Back

A weak correlation means that the data points are more spread out and do not follow a clear pattern, indicating a weak relationship between the variables.