Correlation Coefficient

Front

What is the correlation coefficient?

Back

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

Front

What is the range of values for 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, meaning as one variable increases, the other variable also increases.

Front

What does a correlation coefficient of -1 indicate?

Back

A perfect negative correlation, meaning as one variable increases, the other variable decreases.

Front

What does a correlation coefficient of 0 indicate?

Back

No correlation, meaning there is no relationship between the two variables.

Front

What is a positive correlation?

Back

A relationship where as one variable increases, the other variable also increases.

Front

What is a negative correlation?

Back

A relationship where as one variable increases, the other variable decreases.

Front

What is an example of a positive correlation?

Back

The relationship between hours studied and test scores; generally, more study hours lead to higher scores.

Front

What is an example of a negative correlation?

Back

The relationship between the number of hours spent watching TV and test scores; generally, more TV time leads to lower scores.

Front

What is a scatterplot?

Back

A graph that displays values for typically two variables for a set of data.