Explore BrainMass

Explore BrainMass

    Regression and Correlation Assumptions

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    1) When is regression used? What are the assumptions of Linear Regression?
    2) What is correlation? How does it differ from regression? What is the interpretation of the correlation coefficient?

    © BrainMass Inc. brainmass.com June 3, 2020, 7:53 pm ad1c9bdddf
    https://brainmass.com/statistics/regression-analysis/regression-correlation-assumptions-115795

    Solution Preview

    1) When is regression used? What are the assumptions of Linear Regression?

    Correlation and regression analysis are both used to investigate relationships between two variables (x and y).

    In a linear regression, you fit the data to a model of the form

    where α and β are the parameters of the model (the y-intercept and the slope of the line) and ε is the error term (each data point has a corresponding εi term, which shows how far away from the line the point falls).

    You assume ...

    $2.19

    ADVERTISEMENT