Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 607 · 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.🎯 Nisha’s spam spotter was tested on 20 new messages and got 20 right. What is its accuracy in percent?
2. 2.🧪 Why must you test a model on examples it has NOT seen? (a) to see if it learned (b) to make it faster (c) to save paper (d) to make it bigger
3. 3.🎯 Diya’s leaf identifier was tested on 50 new leaf photos and got 25 right. What is its accuracy in percent?
4. 4.📋 Planning an AI project: which comes first — collect fruit photos or fix it and test again? (a) collect fruit photos (b) fix it and test again
5. 5.📋 Planning an AI project: which comes first — calculate percent right or fix it and test again? (a) calculate percent right (b) fix it and test again
6. 6.🎯 Arjun’s handwriting reader is 60% accurate. If it is tested on 70 new handwritten letters, how many should it get right?
7. 7.🎯 Ananya’s spam spotter was tested on 5 new messages and got 5 right. What is its accuracy in percent?
8. 8.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
9. 9.⚖️ Two recycling sorter models were tested on the same 20 waste photos. Model A got 19 right and Model B got 18 right. How many percentage points more accurate is Model A?
10. 10.❌ Kabir’s fruit sorter was tested on 35 new fruit photos and got 26 right. How many did it get wrong?
11. 11.📋 Planning an AI project: which comes first — label each example or recheck every label? (a) label each example (b) recheck every label
12. 12.📋 Planning an AI project: which comes first — work out the accuracy or test on new photos? (a) work out the accuracy (b) test on new photos
13. 13.🧪 You can plan a simple AI project with… (a) only a big robot (b) a secret password (c) nothing at all (d) paper and examples
14. 14.📋 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
15. 15.⚖️ Two recycling sorter models were tested on the same 20 waste photos. Model A got 18 right and Model B got 13 right. How many percentage points more accurate is Model A?
16. 16.🎯 Diya’s bird-song app was tested on 25 new bird songs and got 18 right. What is its accuracy in percent?
17. 17.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 17 right and Model B got 13 right. How many percentage points more accurate is Model A?
18. 18.❌ Ananya’s bird-song app was tested on 45 new bird songs and got 40 right. How many did it get wrong?
19. 19.📦 Arjun collected 40 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
20. 20.❌ Arjun’s leaf identifier was tested on 23 new leaf photos and got 22 right. How many did it get wrong?
21. 21.🎯 Saanvi’s leaf identifier is 90% accurate. If it is tested on 80 new leaf photos, how many should it get right?
22. 22.📋 Planning an AI project: which comes first — fix it and test again or calculate percent right? (a) fix it and test again (b) calculate percent right
23. 23.🎯 Saanvi’s spam spotter is 50% accurate. If it is tested on 80 new messages, how many should it get right?
24. 24.❌ Saanvi’s bird-song app was tested on 34 new bird songs and got 27 right. How many did it get wrong?
25. 25.📋 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
26. 26.📋 Planning an AI project: which comes first — improve data, retest or let it learn patterns? (a) improve data, retest (b) let it learn patterns
27. 27.📋 Planning an AI project: which comes first — fix it and test again or choose what to sort? (a) fix it and test again (b) choose what to sort
28. 28.❌ Tara’s handwriting reader was tested on 24 new handwritten letters and got 17 right. How many did it get wrong?
29. 29.📋 Planning an AI project: which comes first — choose what to sort or calculate percent right? (a) choose what to sort (b) calculate percent right
30. 30.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
31. 31.🧪 What is accuracy? (a) total × 2 (b) total − correct (c) correct ÷ total × 100 (d) correct + total
32. 32.🎯 Meera’s handwriting reader is 90% accurate. If it is tested on 40 new handwritten letters, how many should it get right?
33. 33.🎯 Rohan’s fruit sorter was tested on 10 new fruit photos and got 6 right. What is its accuracy in percent?
34. 34.🎯 Diya’s leaf identifier is 70% accurate. If it is tested on 20 new leaf photos, how many should it get right?
35. 35.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 24 right and Model B got 22 right. How many percentage points more accurate is Model A?
36. 36.🎯 Vihaan’s recycling sorter was tested on 25 new waste photos and got 22 right. What is its accuracy in percent?
37. 37.📦 Ananya collected 40 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
38. 38.📦 Ananya collected 110 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
39. 39.📋 Planning an AI project: which comes first — split train and test or train the model? (a) split train and test (b) train the model
40. 40.📋 Planning an AI project: which comes first — set aside test photos or pick a question to solve? (a) set aside test photos (b) pick a question to solve

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