AP
Stat Unit 2: Relations Between Two Variables
Chapter 3:
Linear Regression
Chapter 4:
Non-linear data
The central idea of this chapter is that we can describe the association between two variables in a simple mathematical function. Scatterplots of the data collected are used to display the direction, form and strength of the relationship. Regression analysis, principally the Least Squares Regression Line, can be used to quantify the relationship. In Chapter 3, those relationships will be linear. In Chapter 4, we will explore relationships that follow exponential or polynomial functions. We will also look at the association between categorical (non-numeric) variables at the end of Chapter 4.
Date |
Section |
Topics/Objectives |
|
Problems |
|
9/22 |
Bivariate (two-variables) scatterplots |
107-115 |
1 – 3, 5, 7, 8 |
|
|
9/25 |
Categorical variables in scatterplots |
117-122 |
10-13, 17 |
|
|
9/26 |
The Correlation Constant r |
128-133 |
20 – 24 |
|
|
9/27 |
Calculating the Least Squares Regression Line (LSRL) from formulas |
137-142 |
33, 34 |
|
|
9/28 |
Finding the LSRL on the TI The Coefficient of Determination: r2 |
144-150 |
36, 37, 38 |
|
|
9/29 |
Residuals and Residual Plots |
151-159 |
39, 40, 41 |
|
|
10/2 |
|
Work day |
160 |
43 – 48 |
|
10/3 |
Chapter 3 Review |
Work day |
164-165 |
51-53, 55, 56, 58 |
|
10/4 |
Semester Project data gathering |
|
Print Project 1 Assign. |
|
|
10/5 |
|
Calculator skills: Saving graphs w text |
|
|
|
10/6 |
Exponential Regression |
176-188 |
1 |
|
|
10/9 |
Work day |
|
Do Exercise 2 in groups |
|
|
10/10 |
|
Project work day |
|
Create Part 1 graphs |
|
10/11 |
|
Project work day |
|
Write Part 1 analysis |
|
10/12 |
|
Project work day |
|
Create Part 2 graphs |
|
10/13 |
|
Project work day |
|
Write Part 2 analysis |
|
10/16 |
Power Regression |
190-195 |
Example 4.3 (Not problem 4.3) |
|
|
10/17 |
Work day |
|
Do Exercise 4 in groups |
|
|
10/18 |
Interpreting correlation & regression BRING BOOKS TO
CLASS TODAY |
206-214 |
19, 20, 22-24 28, 29 |
|
|
10/19 |
Associations between Categorical Variables |
215-221 |
32, 33, 38 |
|
|
10/20 |
Simpson’s Paradox |
222-226 |
40, 41 |
|
|
10/23 |
Regression Overview & Review Fathom Demo: Planets data |
197 |
6, 8, 12 |
|
|
10/24 |
|
Work day: Questions and practice |
|
TBA |
|
10/25 |
|
Work day: Questions and practice |
|
TBA |
|
10/26 |
Review day |
|
|
|
|
10/27 |
|
Unit 2 Test |
|
|