Activities

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Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Math: Statistics: Data Analysis
- Math: Statistics: Describing Bivariate Data
Author

Texas Instruments
Level

9-12
Activity Time

40 Minutes
Device
- TI-Nspire™ CX/CX II
- TI-Nspire™ CX CAS/CX II CAS
- TI-Nspire™ Navigator™
- TI-Nspire™
- TI-Nspire™ CAS
Software

TI-Nspire™
TI-Nspire™ CAS
TI-Nspire Version

3.2
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Transforming Relationships

Activity Overview

In this activity, students will assess the strength of a linear relationship using a residual plot. They will also calculate the correlation coefficient and coefficient of determination to assess the data set. Students will then learn to transform one or two variables in the relationship to create a linear relationship.

Key Steps

Students are given a spreadsheet with four data sets. Each data set is graphed on a separate scatter plot.
Students will transform a data set by calculating the logarithm value of the data, which linearizes the exponential data. They will assess the fit graphically and numerically.
To assess the fit graphically and numerically, students will create a residual plot and look at the r and r² values.

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Transforming Relationships

Activity Overview

Key Steps

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