Correlation Coefficient

Front

What is the correlation coefficient?

Back

A statistical measure that describes the strength and direction of a relationship between two variables, ranging 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 both variables increase or decrease together.

Front

What is a negative correlation?

Back

A relationship where one variable increases while the other decreases.

Front

What is no correlation?

Back

A situation where changes in one variable do not affect the other variable.

Front

How can you visually identify correlation in a scatterplot?

Back

By observing the direction and pattern of the points; a rising pattern indicates positive correlation, a falling pattern indicates negative correlation.

Front

What is the range of the correlation coefficient?

Back

The range is from -1 to 1.

Front

What does a correlation coefficient close to 0 indicate?

Back

It indicates a weak or no linear relationship between the two variables.