Activities

Tootsie Pops & Hand Span

Students will collect data, find the linear regression model of the data, and address aspects of the data that affect regression.

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.