Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 580 · 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.🎯 Aarav’s handwriting reader is 70% accurate. If it is tested on 40 new handwritten letters, how many should it get right?
2. 2.📦 Arjun collected 190 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
3. 3.⚖️ Two leaf identifier models were tested on the same 20 leaf photos. Model A got 14 right and Model B got 13 right. How many percentage points more accurate is Model A?
4. 4.📋 Planning an AI project: which comes first — correct bad labels or tag each photo by type? (a) correct bad labels (b) tag each photo by type
5. 5.🎯 Tara’s bird-song app was tested on 50 new bird songs and got 28 right. What is its accuracy in percent?
6. 6.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to see if it learned (c) to make it bigger (d) to save paper
7. 7.📋 Planning an AI project: which comes first — set aside test photos or test on new photos? (a) set aside test photos (b) test on new photos
8. 8.🎯 Vihaan’s handwriting reader was tested on 20 new handwritten letters and got 10 right. What is its accuracy in percent?
9. 9.📦 Ishaan collected 150 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
10. 10.📋 Planning an AI project: which comes first — collect fruit photos or split train and test? (a) collect fruit photos (b) split train and test
11. 11.🎯 Aarav’s handwriting reader was tested on 50 new handwritten letters and got 44 right. What is its accuracy in percent?
12. 12.📋 Planning an AI project: which comes first — set aside test photos or work out the accuracy? (a) set aside test photos (b) work out the accuracy
13. 13.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 23 right and Model B got 22 right. How many percentage points more accurate is Model A?
14. 14.🎯 Arjun’s leaf identifier was tested on 4 new leaf photos and got 2 right. What is its accuracy in percent?
15. 15.📋 Planning an AI project: which comes first — try unseen examples or pick a question to solve? (a) try unseen examples (b) pick a question to solve
16. 16.📋 Planning an AI project: which comes first — label each example or split train and test? (a) label each example (b) split train and test
17. 17.❌ Vihaan’s bird-song app was tested on 14 new bird songs and got 11 right. How many did it get wrong?
18. 18.📦 Ananya collected 160 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
19. 19.🧪 You can plan a simple AI project with… (a) nothing at all (b) only a big robot (c) a secret password (d) paper and examples
20. 20.📋 Planning an AI project: which comes first — fix it and test again or recheck every label? (a) fix it and test again (b) recheck every label
21. 21.📋 Planning an AI project: which comes first — correct bad labels or improve data, retest? (a) correct bad labels (b) improve data, retest
22. 22.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) a new colour screen (c) more labelled examples (d) a louder speaker
23. 23.📋 Planning an AI project: which comes first — train the model or pick a question to solve? (a) train the model (b) pick a question to solve
24. 24.📋 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
25. 25.🎯 Saanvi’s leaf identifier was tested on 50 new leaf photos and got 26 right. What is its accuracy in percent?
26. 26.📋 Planning an AI project: which comes first — fix it and test again or let it learn patterns? (a) fix it and test again (b) let it learn patterns
27. 27.🎯 Tara’s spam spotter was tested on 4 new messages and got 3 right. What is its accuracy in percent?
28. 28.📋 Planning an AI project: which comes first — tag each photo by type or improve data, retest? (a) tag each photo by type (b) improve data, retest
29. 29.📋 Planning an AI project: which comes first — test on new photos or correct bad labels? (a) test on new photos (b) correct bad labels
30. 30.🧪 What is accuracy? (a) total × 2 (b) correct ÷ total × 100 (c) total − correct (d) correct + total
31. 31.📋 Planning an AI project: which comes first — calculate percent right or tag each photo by type? (a) calculate percent right (b) tag each photo by type
32. 32.🎯 Meera’s bird-song app is 90% accurate. If it is tested on 100 new bird songs, how many should it get right?
33. 33.🎯 Diya’s handwriting reader is 80% accurate. If it is tested on 10 new handwritten letters, how many should it get right?
34. 34.🎯 Aarav’s spam spotter was tested on 20 new messages and got 16 right. What is its accuracy in percent?
35. 35.❌ Vihaan’s spam spotter was tested on 48 new messages and got 41 right. How many did it get wrong?
36. 36.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
37. 37.📋 Planning an AI project: which comes first — tag each photo by type or pick a question to solve? (a) tag each photo by type (b) pick a question to solve
38. 38.📋 Planning an AI project: which comes first — collect fruit photos or try unseen examples? (a) collect fruit photos (b) try unseen examples
39. 39.⚖️ Two leaf identifier models were tested on the same 50 leaf photos. Model A got 44 right and Model B got 38 right. How many percentage points more accurate is Model A?
40. 40.❌ Nisha’s recycling sorter was tested on 50 new waste photos and got 44 right. How many did it get wrong?

Free ai for students lessons, practice and worksheets at talentjr.in/ai-for-students