Scatter Plots and Association

Front

What is a scatter plot?

Back

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

Front

What does it mean if a scatter plot shows a positive association?

Back

A positive association means that as one variable increases, the other variable also tends to increase.

Front

What does it mean if a scatter plot shows a negative association?

Back

A negative association means that as one variable increases, the other variable tends to decrease.

Front

What does it mean if a scatter plot shows no association?

Back

No association means there is no discernible relationship between the two variables; changes in one do not predict changes in the other.

Front

What is the form of a scatter plot?

Back

The form of a scatter plot refers to the overall shape of the data points, which can be linear, nonlinear, or scattered.

Front

How can you determine the strength of an association in a scatter plot?

Back

The strength of an association can be determined by how closely the data points cluster around a line or curve; closer points indicate a stronger association.

Front

What is a linear association in a scatter plot?

Back

A linear association occurs when the data points can be approximated by a straight line.

Front

What is a nonlinear association in a scatter plot?

Back

A nonlinear association occurs when the data points do not follow a straight line and may curve or cluster in a different pattern.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far away from the other points and can significantly affect the interpretation of the association.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots are used to visually assess the relationship between two variables, helping to identify trends, correlations, and potential outliers.