Correlation Coefficient

Front

What is the correlation coefficient for a perfect negative correlation?

Back

-1

Front

What does a correlation coefficient of 0 indicate about the relationship between two variables?

Back

No association.

Front

What type of association is represented by a correlation coefficient greater than 0?

Back

Positive association.

Front

What type of association is represented by a correlation coefficient less than 0?

Back

Negative association.

Front

What does a correlation coefficient of +1 indicate?

Back

Perfect positive correlation.

Front

What does a weak negative correlation imply about the relationship between two variables?

Back

There is a slight tendency for one variable to decrease as the other increases.

Front

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

Back

-1 to +1.

Front

What type of functions is the correlation coefficient (r) primarily useful for?

Back

Linear functions.

Front

How can you visually assess the correlation between two variables?

Back

By using a scatter plot.

Front

What does a scatter plot with points that are widely dispersed indicate about the correlation?

Back

It indicates a weak correlation.