Scatterplot Association Flashcard

Front

What is a positive linear association?

Back

A positive linear association occurs when two variables increase together, meaning that as one variable increases, the other variable also tends to increase.

Front

What is a negative linear association?

Back

A negative linear association occurs when one variable increases while the other variable decreases, indicating an inverse relationship between the two.

Front

What does no association mean in a scatterplot?

Back

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

Front

What is a non-linear association?

Back

A non-linear association occurs when the relationship between two variables cannot be accurately represented by a straight line; the relationship may be curved or follow a different pattern.

Front

How can you identify a positive association in a scatterplot?

Back

A positive association is identified when the points on the scatterplot trend upwards from left to right.

Front

How can you identify a negative association in a scatterplot?

Back

A negative association is identified when the points on the scatterplot trend downwards from left to right.

Front

What does it mean if a scatterplot shows a non-linear relationship?

Back

It means that the relationship between the variables changes direction or rate of change, and cannot be described by a straight line.

Front

What is the purpose of a scatterplot?

Back

A scatterplot is used to visually represent the relationship between two quantitative variables, helping to identify patterns, trends, and associations.

Front

What is correlation in the context of scatterplots?

Back

Correlation refers to the strength and direction of a linear relationship between two variables, which can be positive, negative, or zero.

Front

What is the significance of the slope in a linear association?

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.