Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 428 · 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 bird-song app is 90% accurate. If it is tested on 10 new bird songs, how many should it get right?
2. 2.📦 Ishaan collected 120 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
3. 3.🎯 Kabir’s spam spotter was tested on 25 new messages and got 14 right. What is its accuracy in percent?
4. 4.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 8 right and Model B got 7 right. How many percentage points more accurate is Model A?
5. 5.🧪 What is accuracy? (a) total × 2 (b) correct + total (c) total − correct (d) correct ÷ total × 100
6. 6.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) a louder speaker (c) fewer examples (d) a new colour screen
7. 7.📋 Planning an AI project: which comes first — improve data, retest or split train and test? (a) improve data, retest (b) split train and test
8. 8.📋 Planning an AI project: which comes first — collect fruit photos or choose what to sort? (a) collect fruit photos (b) choose what to sort
9. 9.❌ Ishaan’s bird-song app was tested on 50 new bird songs and got 48 right. How many did it get wrong?
10. 10.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 23 right and Model B got 13 right. How many percentage points more accurate is Model A?
11. 11.📋 Planning an AI project: which comes first — recheck every label or calculate percent right? (a) recheck every label (b) calculate percent right
12. 12.🧪 You can plan a simple AI project with… (a) a secret password (b) paper and examples (c) nothing at all (d) only a big robot
13. 13.📦 Aarav collected 80 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
14. 14.📋 Planning an AI project: which comes first — test on new photos or calculate percent right? (a) test on new photos (b) calculate percent right
15. 15.🎯 Saanvi’s spam spotter is 70% accurate. If it is tested on 10 new messages, how many should it get right?
16. 16.❌ Tara’s fruit sorter was tested on 30 new fruit photos and got 22 right. How many did it get wrong?
17. 17.📦 Tara collected 170 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
18. 18.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 50 right and Model B got 45 right. How many percentage points more accurate is Model A?
19. 19.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to see if it learned (c) to save paper (d) to make it faster
20. 20.🎯 Aarav’s recycling sorter is 90% accurate. If it is tested on 10 new waste photos, how many should it get right?
21. 21.🎯 Diya’s bird-song app was tested on 5 new bird songs and got 3 right. What is its accuracy in percent?
22. 22.❌ Kabir’s leaf identifier was tested on 46 new leaf photos and got 40 right. How many did it get wrong?
23. 23.📋 Planning an AI project: which comes first — split train and test or correct bad labels? (a) split train and test (b) correct bad labels
24. 24.🎯 Ishaan’s handwriting reader was tested on 5 new handwritten letters and got 3 right. What is its accuracy in percent?
25. 25.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 8 right and Model B got 6 right. How many percentage points more accurate is Model A?
26. 26.📋 Planning an AI project: which comes first — try unseen examples or calculate percent right? (a) try unseen examples (b) calculate percent right
27. 27.🎯 Aarav’s spam spotter is 70% accurate. If it is tested on 100 new messages, how many should it get right?
28. 28.📋 Planning an AI project: which comes first — try unseen examples or let it learn patterns? (a) try unseen examples (b) let it learn patterns
29. 29.📋 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
30. 30.🎯 Meera’s leaf identifier is 90% accurate. If it is tested on 40 new leaf photos, how many should it get right?
31. 31.📦 Nisha collected 160 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
32. 32.📋 Planning an AI project: which comes first — let it learn patterns or fix it and test again? (a) let it learn patterns (b) fix it and test again
33. 33.❌ Saanvi’s fruit sorter was tested on 35 new fruit photos and got 31 right. How many did it get wrong?
34. 34.📋 Planning an AI project: which comes first — test on new photos or choose what to sort? (a) test on new photos (b) choose what to sort
35. 35.🎯 Saanvi’s leaf identifier is 50% accurate. If it is tested on 40 new leaf photos, how many should it get right?
36. 36.📋 Planning an AI project: which comes first — fix it and test again or set aside test photos? (a) fix it and test again (b) set aside test photos
37. 37.📋 Planning an AI project: which comes first — fix it and test again or work out the accuracy? (a) fix it and test again (b) work out the accuracy
38. 38.⚖️ Two fruit sorter models were tested on the same 25 fruit photos. Model A got 25 right and Model B got 24 right. How many percentage points more accurate is Model A?
39. 39.📋 Planning an AI project: which comes first — calculate percent right or improve data, retest? (a) calculate percent right (b) improve data, retest
40. 40.📦 Ishaan collected 50 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?

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