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 correlation coefficient of r=1 indicate?

Back

A perfect positive correlation, meaning as one variable increases, the other variable also increases.

Front

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

Back

A perfect negative correlation, meaning as one variable increases, the other variable decreases.

Front

What does a correlation coefficient of r=0 indicate?

Back

No correlation, meaning there is no relationship between the two variables.

Front

What is a positive correlation?

Back

A relationship where an increase in one variable leads to an increase in another variable.

Front

What is a negative correlation?

Back

A relationship where an increase in one variable leads to a decrease in another variable.

Front

What is a scatter plot?

Back

A graphical representation of two variables, showing the relationship between them using dots.

Front

What is the line of best fit?

Back

A straight line that best represents the data on a scatter plot, indicating the trend of the data.

Front

What does it mean if the line of best fit slopes upwards?

Back

It indicates a positive correlation between the two variables.

Front

What does it mean if the line of best fit slopes downwards?

Back

It indicates a negative correlation between the two variables.