Linear Regression and Correlation

Front

What is Linear Regression?

Back

A statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Front

What does correlation measure?

Back

Correlation measures the strength and direction of a linear relationship between 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 does 'No Correlation' mean?

Back

It indicates that there is no predictable relationship between the two variables.

Front

What is the correlation coefficient (r)?

Back

A numerical measure of the strength and direction of a linear relationship between two variables, ranging from -1 to 1.

Front

What does an r value of 1 indicate?

Back

A perfect positive linear relationship between two variables.

Front

What does an r value of -1 indicate?

Back

A perfect negative linear relationship between two variables.

Front

What does an r value of 0 indicate?

Back

No linear relationship between the two variables.

Front

What is a scatter plot?

Back

A graphical representation of two variables where each point represents an observation.