This is a large unit covering all things with linear regressions. This includes three multi day powerpoint files, two quizzes, a test (and a make-up test), a Geometer's SketchPad file that demonstrates the LSRL and what it looks like, and a worksheet walking students through an AP-style problem.
The answer keys for tests and quizzes are included. I've also included my daily class notes so you can see how the powerpoint files can be used in class.