Correlation Coefficient

Front

What does a correlation coefficient of r = 0.3 indicate about the relationship between two variables?

Back

It indicates a weak positive correlation.

Front

What does a correlation coefficient of r = 0.99 suggest about the relationship between two variables?

Back

It suggests a very strong positive correlation.

Front

What type of correlation is represented by a correlation coefficient of r = -0.95?

Back

It represents a strong negative correlation.

Front

How would you estimate the correlation coefficient from a scatterplot that shows a downward trend?

Back

You would estimate it to be a negative value, such as r = -0.9.

Front

What does a correlation coefficient of r = 0.32 indicate about the relationship between two variables?

Back

It indicates a weak positive correlation.

Front

What is the range of possible values for a correlation coefficient?

Back

The range is from -1 to +1.

Front

What does a correlation coefficient of r = 0 imply about the relationship between two variables?

Back

It implies no correlation between the variables.

Front

What does a correlation coefficient of r = -1 indicate?

Back

It indicates a perfect negative correlation.

Front

What does a correlation coefficient of r = +1 indicate?

Back

It indicates a perfect positive correlation.

Front

How can you interpret a correlation coefficient close to 0?

Back

It suggests a weak or no linear relationship between the variables.