Classroom Activity

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Key Topic: Linear Regression

Radar sightings are taken throughout the United States and the world to keep track of the spacecraft like the International Space Station (ISS). The radars used must be calibrated to have a very precise accuracy. In this activity, students will look at data from an uncalibrated radar and a calibrated radar and determine how statistically significant the error is between the two different data sets.

Students will
  • calculate and interpret the meaning of the correlation coefficient, r, and the coefficient of determination, r ²
  • write a regression equation, and interpret the meaning of the slope and y-intercept in context to the problem;
  • make predictions based on a least squares regression model; and
  • plot residuals, and interpret their graphical form.

› Spacecraft Radar Tracking Educator Edition (PDF 270 KB)
› Spacecraft Radar Tracking Student Edition (PDF 154 KB)

Files for use with the TI-Nspireā„¢
› Spacecraft Radar Tracking TI-Nspire Educator Edition (PDF 398 KB)
› Spacecraft Radar Tracking TI-Nspire Student Edition (PDF 116 KB)
Note: The following files are software specific files for Texas Instrument Nspire calculators.
› Spacecraft Radar Tracking TI-Nspire Document (TNS 179 KB)
› Spacecraft Radar Tracking TI-Nspire Document w/ Solutions (TNS 183 KB)

Related Resources
› WEBSITE: Learn how and when you can see the International Space Station in your area when it passes overhead.