Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 614 · 40 questions

AI tip (Accuracy = correct ÷ total × 100): Steps: 1 choose a problem → 2 collect examples → 3 label them → 4 check and correct bad labels (clean the data) → 5 split into training and test sets → 6 train → 7 test with new examples → 8 measure accuracy → 9 improve the data and retest. Accuracy = correct ÷ total × 100. Wrong = total − correct. Expected right = accuracy ÷ 100 × total. Keep some examples apart for testing (for example one fifth); the rest are for training.

1. 1.🎯 Saanvi’s spam spotter was tested on 4 new messages and got 4 right. What is its accuracy in percent?
2. 2.📋 Planning an AI project: which comes first — recheck every label or label each example? (a) recheck every label (b) label each example
3. 3.📋 Planning an AI project: which comes first — work out the accuracy or fix it and test again? (a) work out the accuracy (b) fix it and test again
4. 4.🎯 Diya’s handwriting reader was tested on 4 new handwritten letters and got 3 right. What is its accuracy in percent?
5. 5.🎯 Rohan’s bird-song app is 60% accurate. If it is tested on 20 new bird songs, how many should it get right?
6. 6.🎯 Vihaan’s spam spotter is 90% accurate. If it is tested on 40 new messages, how many should it get right?
7. 7.📦 Arjun collected 50 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
8. 8.🧪 You can plan a simple AI project with… (a) only a big robot (b) paper and examples (c) a secret password (d) nothing at all
9. 9.🎯 Kabir’s spam spotter was tested on 20 new messages and got 15 right. What is its accuracy in percent?
10. 10.🧪 What is accuracy? (a) total − correct (b) correct + total (c) correct ÷ total × 100 (d) total × 2
11. 11.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a louder speaker (c) more labelled examples (d) a new colour screen
12. 12.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 22 right and Model B got 13 right. How many percentage points more accurate is Model A?
13. 13.🎯 Nisha’s handwriting reader is 70% accurate. If it is tested on 50 new handwritten letters, how many should it get right?
14. 14.📋 Planning an AI project: which comes first — gather many examples or choose what to sort? (a) gather many examples (b) choose what to sort
15. 15.📋 Planning an AI project: which comes first — test on new photos or calculate percent right? (a) test on new photos (b) calculate percent right
16. 16.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 9 right and Model B got 7 right. How many percentage points more accurate is Model A?
17. 17.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 20 right and Model B got 18 right. How many percentage points more accurate is Model A?
18. 18.🧪 Why must you test a model on examples it has NOT seen? (a) to see if it learned (b) to make it bigger (c) to save paper (d) to make it faster
19. 19.📋 Planning an AI project: which comes first — set aside test photos or try unseen examples? (a) set aside test photos (b) try unseen examples
20. 20.📋 Planning an AI project: which comes first — gather many examples or let it learn patterns? (a) gather many examples (b) let it learn patterns
21. 21.🎯 Arjun’s handwriting reader is 70% accurate. If it is tested on 20 new handwritten letters, how many should it get right?
22. 22.🎯 Tara’s leaf identifier was tested on 5 new leaf photos and got 5 right. What is its accuracy in percent?
23. 23.🎯 Aarav’s bird-song app was tested on 5 new bird songs and got 3 right. What is its accuracy in percent?
24. 24.📋 Planning an AI project: which comes first — calculate percent right or collect fruit photos? (a) calculate percent right (b) collect fruit photos
25. 25.🎯 Arjun’s bird-song app is 70% accurate. If it is tested on 80 new bird songs, how many should it get right?
26. 26.❌ Nisha’s leaf identifier was tested on 39 new leaf photos and got 34 right. How many did it get wrong?
27. 27.📋 Planning an AI project: which comes first — collect fruit photos or calculate percent right? (a) collect fruit photos (b) calculate percent right
28. 28.🎯 Aarav’s handwriting reader is 80% accurate. If it is tested on 40 new handwritten letters, how many should it get right?
29. 29.❌ Arjun’s spam spotter was tested on 22 new messages and got 17 right. How many did it get wrong?
30. 30.📦 Rohan collected 130 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
31. 31.📋 Planning an AI project: which comes first — test on new photos or gather many examples? (a) test on new photos (b) gather many examples
32. 32.🎯 Saanvi’s fruit sorter is 50% accurate. If it is tested on 70 new fruit photos, how many should it get right?
33. 33.🎯 Kabir’s handwriting reader was tested on 5 new handwritten letters and got 4 right. What is its accuracy in percent?
34. 34.📋 Planning an AI project: which comes first — try unseen examples or train the model? (a) try unseen examples (b) train the model
35. 35.📦 Tara collected 140 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
36. 36.📦 Diya collected 140 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
37. 37.📋 Planning an AI project: which comes first — recheck every label or set aside test photos? (a) recheck every label (b) set aside test photos
38. 38.📋 Planning an AI project: which comes first — gather many examples or improve data, retest? (a) gather many examples (b) improve data, retest
39. 39.📋 Planning an AI project: which comes first — test on new photos or pick a question to solve? (a) test on new photos (b) pick a question to solve
40. 40.📋 Planning an AI project: which comes first — split train and test or test on new photos? (a) split train and test (b) test on new photos

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