Education Technology


Residuals

Activity Overview

In this activity, students will investigate a residual plot for a set of data after selecting a regression model. 

About the Lesson

This lesson includes modeling a data set using linear and exponential regressions.

  • As a result students will:
    • Observe a residual plot as well as a scatter plot of the data.
    • Understand that a residual is the actual value of the data minus the predicted value from the regression equation.
    • Conjecture and draw conclusions about the appropriateness of the model based on the residual plot.

    *Note: This activity contains an optional AP Practice Questions document for those students preparing for the AP Precalculus Exam.