Videos and lessons with examples and solutions to help Algebra I students learn to use a graphing calculator to construct the residual plot for a given data set. Students use a residual plot as an indication of whether the model used to describe the relationship between two numerical variables is an appropriate choice.
In these lessons, students use technology to generate residual plots. Students build on their knowledge of using technology to determine the least-squares line for a data set.
Lesson 17 Summary
After fitting a line, the residual plot can be constructed using a graphing calculator.
A pattern in the residual plot indicates that the relationship in the original data set is not linear.
In an earlier lesson you looked at a data set giving the shoe lengths and heights of 12 adult women. This data set is shown in the table below.
Use a calculator to construct the scatter plot (with least-squares line) and the residual plot for this data set.
Lesson 17 Exit Ticket
Using the TI-Nspire Calculator.
Lesson 18 Summary
Lesson 18 Exit Ticket
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
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