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 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 the correlation coefficient?

Back

The correlation coefficient (r) ranges from -1 to 1.

Front

What does r = 1 signify?

Back

A perfect positive correlation between two variables.

Front

What does r = -1 signify?

Back

A perfect negative correlation between two variables.

Front

What does r = 0 signify?

Back

No correlation between the two variables.

Front

What is a strong positive correlation?

Back

A correlation coefficient close to 1, indicating a strong relationship where both variables increase together.

Front

What is a weak positive correlation?

Back

A correlation coefficient between 0 and 1, indicating a weak relationship where both variables tend to increase together.

Front

What is a strong negative correlation?

Back

A correlation coefficient close to -1, indicating a strong relationship where one variable increases while the other decreases.