After completing this module, you should be able to ...

- Describe the purposes of regression.
- Describe the criteria used to determine the best-fit line to a set of bivariate data.
- Describe the assumptions surrounding the best-fit criteria.
- Identify the response and explanatory variables.
- Describe the equation of a line and what the slope and intercept "mean."
- Make appropriate predictions using the best-fit line.
- Describe the meaning of the coefficient of determination.

## Preparation for Class

Use the resources below to answer these questions. [*Problems with videos?*]

**Primary Resources**(13 pages, 73 mins)- Reading
- R-Squared [5 mins] … corresponding slides
- Regression Questions [10 mins] … corresponding slides
- Assumptions [3 mins] … corresponding slides
- Fall 2020B In-Class “Review Lecture” [55 mins]
- Projection is this example

**Secondary Resources**- Response and Explanatory Variables I [1 min;
*between 1:00 and 2:28*] - Response and Explanatory Variables II [6 mins;
*stop at 6:18*] - Introduction to Regression [14 mins]

- Response and Explanatory Variables I [1 min;

## Practice

## Archive

- Exercises