Tootsie Pops & Hand Span
Math: Statistics: Describing Bivariate Data
9-12
45 Minutes
TI-Nspire™ CX series
TI-Nspire™ CX CAS/CX II CAS
3.0
- At least 34 Tootsie Pops (you might need more if you want students to each have one) and a wide bowl or bucket (a children’s plastic beach bucket works well)
- One or more rulers with both inches and centimeters
Lessons
TNS
Tootsie Pops & Hand Span
Activity Overview
Students will collect data, find the linear regression model of the data, and address aspects of the data that affect regression.
Objectives
Students will:
- decide on data collection methodology and collect data.
- plot data on a scatter plot.
- find and interpret the correlation coefficient, coefficient of determination, and the equation of the least-squares regression line.
- add the least-squares regression line to their scatter plot and make a residual plot.
- identify outliers and influential points.
- use their model to make predictions.
- discuss sources of error in the data collection, and discuss causation.
Download Files
Math: Statistics: Describing Bivariate Data
9-12
45 Minutes
TI-Nspire™ CX series
TI-Nspire™ CX CAS/CX II CAS
3.0
- At least 34 Tootsie Pops (you might need more if you want students to each have one) and a wide bowl or bucket (a children’s plastic beach bucket works well)
- One or more rulers with both inches and centimeters
Lessons
TNS
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