Scatterplot Associations

Front

What is a scatterplot?

Back

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

Tags

CCSS.8.SP.A.1

Front

What does 'association' mean in the context of scatterplots?

Back

Association refers to the relationship or correlation between two variables, indicating how one variable may change in relation to another.

Tags

CCSS.HSS.ID.B.5

Front

What is a positive linear association?

Back

A positive linear association means that as one variable increases, the other variable also tends to increase, resulting in a straight line that slopes upwards.

Front

What is a negative linear association?

Back

A negative linear association means that as one variable increases, the other variable tends to decrease, resulting in a straight line that slopes downwards.

Tags

CCSS.HSS.ID.B.5

Front

What does 'no association' mean?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What is a non-linear association?

Back

A non-linear association occurs when the relationship between two variables does not follow a straight line; it may curve or change direction.

Tags

CCSS.HSS.ID.B.5

Front

How can you identify a positive association in a scatterplot?

Back

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

Tags

CCSS.HSF-LE.A.1B

Front

How can you identify a negative association in a scatterplot?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What is correlation in statistics?

Back

Correlation is a statistical measure that describes the extent to which two variables change together.

Tags

CCSS.HSS.ID.C.9

Front

What does a correlation coefficient of +1 indicate?

Back

A correlation coefficient of +1 indicates a perfect positive linear relationship between two variables.

Tags

CCSS.HSS.ID.B.5