Scatterplots and Associations

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Tags

CCSS.8.SP.A.1

Front

What does a positive association in a scatterplot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does a negative association in a scatterplot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does 'no association' mean in the context of scatterplots?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What is a linear association?

Back

A linear association is a relationship between two variables that can be represented by a straight line on a scatterplot.

Tags

CCSS.8.F.A.3

Front

What is a nonlinear association?

Back

A nonlinear association is a relationship between two variables that cannot be represented by a straight line; the relationship may curve or change direction.

Tags

CCSS.8.F.A.3

Front

How can you describe the strength of an association in a scatterplot?

Back

The strength of an association can be described as strong, moderate, or weak based on how closely the points cluster around a line.

Tags

CCSS.HSF-LE.A.1B

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation indicates that one variable directly affects the other.

Tags

CCSS.HSS.ID.C.9

Front

What does it mean if a scatterplot shows a strong positive trend?

Back

A strong positive trend means that the data points are closely clustered around an upward-sloping line, indicating a strong relationship where both variables increase together.

Tags

CCSS.HSS.ID.B.5

Front

What does it mean if a scatterplot shows a strong negative trend?

Back

A strong negative trend means that the data points are closely clustered around a downward-sloping line, indicating a strong relationship where one variable increases while the other decreases.

Tags

CCSS.HSS.ID.B.5