Although this is not directly tied to any grade, it is important to get the right answer. So in the modeling process, you are competing against your classmates for section and course champion for how well your model predicts the test data set. You were not given these answers, so your instructor will calculate the adjusted r2 for each team.
Project 2 - Predicting Wine Quality / Classification Problems
Project 3 - Predicting Stock Market Growth / Deep Learning & Trees