Scatter Plots and Associations

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 a positive association in a scatter plot indicate?

Back

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

Front

What does a negative association in a scatter plot indicate?

Back

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

Front

What does 'no association' mean in the context of scatter plots?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

What is the difference between linear and nonlinear associations?

Back

Linear associations show a straight-line relationship, while nonlinear associations show a curved relationship.

Front

How can you identify a positive association in a scatter plot?

Back

A positive association can be identified if the points tend to rise from left to right.

Front

How can you identify a negative association in a scatter plot?

Back

A negative association can be identified if the points tend to fall from left to right.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables and to identify patterns or trends.

Front

What does it mean if a scatter plot has a nonlinear form?

Back

A nonlinear form means that the relationship between the variables does not follow a straight line and may curve or change direction.

Front

What is an example of a positive association?

Back

An example of a positive association is the relationship between study time and test scores; as study time increases, test scores tend to increase.