Correlation Coefficient

Front

What is a correlation coefficient?

Back

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

Front

What does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Front

What is the range of values for a correlation coefficient?

Back

The correlation coefficient ranges from -1 to 1.

Front

What does a correlation coefficient of 0 indicate?

Back

There is no correlation between the two variables.

Front

What is the significance of a correlation coefficient of 1?

Back

It indicates a perfect positive correlation between two variables.

Front

What is the significance of a correlation coefficient of -1?

Back

It indicates a perfect negative correlation between two variables.

Front

How can you visually assess correlation?

Back

By using a scatterplot to plot the data points of the two variables.

Front

What does a scatterplot with a downward slope indicate?

Back

It indicates a negative correlation between the variables.

Front

What does a scatterplot with an upward slope indicate?

Back

It indicates a positive correlation between the variables.