Correlation Coefficient

Front

What is the correlation coefficient?

Back

A statistical measure that describes the strength and direction of a relationship between two variables.

Tags

CCSS.HSS.ID.B.5

Front

What does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

Front

What does a correlation coefficient of 0 mean?

Back

There is no correlation between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

What is the range of the correlation coefficient?

Back

The correlation coefficient ranges from -1 to +1.

Front

What does a correlation coefficient of +1 indicate?

Back

A perfect positive correlation between two variables.

Tags

CCSS.HSS.ID.B.5

Front

What does a correlation coefficient of -1 indicate?

Back

A perfect negative correlation between two variables.

Tags

CCSS.HSS.ID.B.5

Front

What is an example of a negative correlation?

Back

The relationship between the amount of exercise and body weight.

Tags

CCSS.HSS.ID.B.5

Front

What is an example of a positive correlation?

Back

The relationship between study time and test scores.

Tags

CCSS.HSS.ID.B.5

Front

What is the purpose of a scatterplot?

Back

To visually represent the relationship between two quantitative variables.

Tags

CCSS.8.SP.A.1