Statistics Unit 3

Big Idea:

Scatterplots, Regression equations, and Residuals

Student Expectations:

Focus Standards

I. Exploring Data: Describing patterns and departures from patterns

D. Exploring bivariate data

1. Analyzing patterns in scatterplots

2. Correlation and linearity

3. Least-squares regression line

4. Residual plots, outliers and influential points

Student Learning Targets:

• I will identify explanatory and response variables
• I will construct and Interpret Scatterplots
• I will describe Direction, Form, and Strength of a Scatterplot
• I will calculate and Interpret Correlation
• I will identify Outliers and explain their effect on correlation
• I will construct the least-squares regression line
• I will interpret slope and y-intercept in context of the problem
• I will calculate and Interpret Residuals
• I will construct and Interpret a Residual Plot
• I will calculate and Interpret R²

Essential Questions:

• What is association?
• What is correlation?
• What does correlation reveal about scatterplots?
• What are residuals and why are they important?
• Can we use extrapolation to predict the future?

Extra Information:

Adopted Textbook:

District Grading Policy

Texas Gateway Online Resource Center