S10.1.24

Front

What does a correlation coefficient of r = 0 indicate?

Back

No correlation between the two variables.

Front

What is the range of values for the correlation coefficient (r)?

Back

The range is from -1 to 1.

Front

What does a correlation coefficient of r = 1 signify?

Back

A perfect positive linear relationship between two variables.

Front

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

Back

A perfect negative linear relationship between two variables.

Front

What does a correlation coefficient of r = 0.5 indicate?

Back

A moderate positive correlation.

Front

What does a correlation coefficient of r = -0.3 indicate?

Back

A weak negative correlation.

Front

What is the interpretation of a correlation coefficient of r = 0?

Back

Indicates no linear relationship between the variables.

Front

What is the formula for calculating the correlation coefficient (r)?

Back

Front

What does a scatter plot represent?

Back

A graphical representation of the relationship between two quantitative variables.

Front

What is the significance of the slope in a linear regression model?

Back

The slope indicates the change in the dependent variable for a one-unit change in the independent variable.