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 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 a scatter plot?

Back

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

Front

What is a linear relationship in a scatter plot?

Back

A linear relationship is when the data points can be approximated by a straight line, indicating a consistent rate of change between the variables.

Front

What is a non-linear relationship in a scatter plot?

Back

A non-linear relationship is when the data points do not form a straight line, indicating that the rate of change between the variables varies.

Front

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

Back

A positive linear association can be identified by a pattern of points that slopes upwards from left to right.

Front

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

Back

A negative linear association can be identified by a pattern of points that slopes downwards 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 trends, patterns, or correlations.

Front

What does it mean if a scatter plot shows a cluster of points?

Back

A cluster of points indicates that there is a concentration of data values in that area, suggesting a potential relationship between the variables.