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2.5 Linear Regression Print and Turn in by the end of the hour Names________________________ 1. With a partner, choose a sport from the winter or summer Olympics. ____________________ 2. Complete the following table with data researched from the internet: (You need to have a table with data from at least 15 different Olympic Games. More if possible) Year (L1) Gold Medal Winning Time (L2) 3. Run a linear regression on your calculator. Write the equation ______________________________________ 2.5 Linear Regression Print and Turn in by the end of the hour Names________________________ 4. In Sketchpad, plot all the points and then plot the graph of your equation. To plot points go to Graph|Plot Points. After typing in all the points, click Done. To graph the line, go to Graph|Plot New Function. Once completed. Click PrntScrn and then paste the image below. 5. Use your equation to predict the winning time for the next Olympics. Show work below calculating f(Year) = _____________________ 6. Is it possible that this trend continues for the next 50 years? Explain why or why not. ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 7. If you substitute 2010 into your equation, why do you NOT get the winning time for 2010? How does this relate to the graph of the points and the regression line? ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________