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Course review & final exams
Final exam: Practical AI
10 new questions you haven't seen in the exercises. The pass mark is 7. Answer them all, then press “Grade”.
1. Forecasting “how many cartons next month” is:
2. Why hold back test data?
3. 98% on training, 65% on test:
4. In y = 30 + 5x, what is y when x = 4?
5. Errors 3, −1, −2, 2. What is the MAE?
6. TP = 30 and FP = 10. What is precision?
7. In fraud detection a model always says “clean” and is 99% accurate. Why is that bad?
8. k-means needs:
9. In scikit-learn, the method that predicts new cases:
10. A sales model weakens after a year because customers changed. This is:
10 unanswered