Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 293 · 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.❌ Arjun’s leaf identifier was tested on 20 new leaf photos and got 11 right. How many did it get wrong?
2. 2.❌ Meera’s bird-song app was tested on 26 new bird songs and got 20 right. How many did it get wrong?
3. 3.🎯 Aarav’s fruit sorter is 70% accurate. If it is tested on 20 new fruit photos, how many should it get right?
4. 4.🎯 Ishaan’s bird-song app was tested on 10 new bird songs and got 6 right. What is its accuracy in percent?
5. 5.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) fewer examples (c) more labelled examples (d) a new colour screen
6. 6.🎯 Diya’s spam spotter was tested on 50 new messages and got 48 right. What is its accuracy in percent?
7. 7.❌ Diya’s fruit sorter was tested on 22 new fruit photos and got 18 right. How many did it get wrong?
8. 8.🧪 What is accuracy? (a) total × 2 (b) correct + total (c) total − correct (d) correct ÷ total × 100
9. 9.🎯 Ishaan’s recycling sorter was tested on 4 new waste photos and got 4 right. What is its accuracy in percent?
10. 10.📋 Planning an AI project: which comes first — improve data, retest or calculate percent right? (a) improve data, retest (b) calculate percent right
11. 11.🎯 Ananya’s bird-song app is 90% accurate. If it is tested on 90 new bird songs, how many should it get right?
12. 12.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
13. 13.⚖️ Two recycling sorter models were tested on the same 20 waste photos. Model A got 14 right and Model B got 12 right. How many percentage points more accurate is Model A?
14. 14.📦 Nisha collected 170 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
15. 15.❌ Kabir’s fruit sorter was tested on 26 new fruit photos and got 24 right. How many did it get wrong?
16. 16.🎯 Rohan’s recycling sorter is 90% accurate. If it is tested on 20 new waste photos, how many should it get right?
17. 17.🧪 Why must you test a model on examples it has NOT seen? (a) to save paper (b) to make it faster (c) to see if it learned (d) to make it bigger
18. 18.🎯 Aarav’s spam spotter was tested on 25 new messages and got 13 right. What is its accuracy in percent?
19. 19.📋 Planning an AI project: which comes first — tag each photo by type or correct bad labels? (a) tag each photo by type (b) correct bad labels
20. 20.🎯 Kabir’s fruit sorter was tested on 50 new fruit photos and got 35 right. What is its accuracy in percent?
21. 21.❌ Diya’s recycling sorter was tested on 29 new waste photos and got 25 right. How many did it get wrong?
22. 22.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 20 right and Model B got 15 right. How many percentage points more accurate is Model A?
23. 23.🎯 Tara’s handwriting reader is 80% accurate. If it is tested on 70 new handwritten letters, how many should it get right?
24. 24.📋 Planning an AI project: which comes first — fix it and test again or try unseen examples? (a) fix it and test again (b) try unseen examples
25. 25.🎯 Ananya’s handwriting reader was tested on 20 new handwritten letters and got 10 right. What is its accuracy in percent?
26. 26.❌ Kabir’s spam spotter was tested on 25 new messages and got 23 right. How many did it get wrong?
27. 27.📋 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
28. 28.📋 Planning an AI project: which comes first — split train and test or calculate percent right? (a) split train and test (b) calculate percent right
29. 29.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
30. 30.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 23 right and Model B got 18 right. How many percentage points more accurate is Model A?
31. 31.❌ Vihaan’s bird-song app was tested on 31 new bird songs and got 22 right. How many did it get wrong?
32. 32.🎯 Meera’s fruit sorter is 60% accurate. If it is tested on 50 new fruit photos, how many should it get right?
33. 33.🎯 Vihaan’s bird-song app is 70% accurate. If it is tested on 80 new bird songs, how many should it get right?
34. 34.📋 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
35. 35.📋 Planning an AI project: which comes first — improve data, retest or gather many examples? (a) improve data, retest (b) gather many examples
36. 36.📋 Planning an AI project: which comes first — correct bad labels or gather many examples? (a) correct bad labels (b) gather many examples
37. 37.🧪 You can plan a simple AI project with… (a) a secret password (b) nothing at all (c) paper and examples (d) only a big robot
38. 38.📦 Ishaan collected 100 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
39. 39.❌ Diya’s fruit sorter was tested on 19 new fruit photos and got 18 right. How many did it get wrong?
40. 40.📋 Planning an AI project: which comes first — correct bad labels or improve data, retest? (a) correct bad labels (b) improve data, retest

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