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 coefficient indicate?

Back

It indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation coefficient indicate?

Back

It indicates that as one variable increases, the other variable tends to decrease.

Front

What is the range of values for a correlation coefficient?

Back

The range is from -1 to 1.

Front

What does a correlation coefficient of 0 mean?

Back

It means there is no correlation between the two variables.

Front

What does a correlation coefficient close to 1 indicate?

Back

It indicates a strong positive correlation.

Front

What does a correlation coefficient close to -1 indicate?

Back

It indicates a strong negative correlation.

Front

How can you visually assess correlation?

Back

By using a scatterplot to see the pattern of data points.

Front

What type of correlation is represented by a downward sloping line in a scatterplot?

Back

Negative correlation.

Front

What type of correlation is represented by an upward sloping line in a scatterplot?

Back

Positive correlation.