Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 305 · 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.🧪 What is accuracy? (a) correct + total (b) total × 2 (c) total − correct (d) correct ÷ total × 100
2. 2.🎯 Tara’s fruit sorter was tested on 4 new fruit photos and got 3 right. What is its accuracy in percent?
3. 3.📋 Planning an AI project: which comes first — try unseen examples or correct bad labels? (a) try unseen examples (b) correct bad labels
4. 4.🎯 Meera’s recycling sorter was tested on 5 new waste photos and got 5 right. What is its accuracy in percent?
5. 5.🎯 Arjun’s recycling sorter was tested on 10 new waste photos and got 6 right. What is its accuracy in percent?
6. 6.🧪 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
7. 7.🎯 Saanvi’s spam spotter is 60% accurate. If it is tested on 90 new messages, how many should it get right?
8. 8.🎯 Aarav’s spam spotter is 80% accurate. If it is tested on 90 new messages, how many should it get right?
9. 9.🎯 Arjun’s handwriting reader was tested on 4 new handwritten letters and got 2 right. What is its accuracy in percent?
10. 10.🎯 Tara’s leaf identifier is 70% accurate. If it is tested on 70 new leaf photos, how many should it get right?
11. 11.🎯 Vihaan’s leaf identifier was tested on 25 new leaf photos and got 22 right. What is its accuracy in percent?
12. 12.❌ Rohan’s fruit sorter was tested on 35 new fruit photos and got 30 right. How many did it get wrong?
13. 13.📋 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
14. 14.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 16 right and Model B got 12 right. How many percentage points more accurate is Model A?
15. 15.📦 Ananya collected 160 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
16. 16.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?
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.📋 Planning an AI project: which comes first — tag each photo by type or split train and test? (a) tag each photo by type (b) split train and test
19. 19.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 15 right and Model B got 12 right. How many percentage points more accurate is Model A?
20. 20.📋 Planning an AI project: which comes first — collect fruit photos or tag each photo by type? (a) collect fruit photos (b) tag each photo by type
21. 21.❌ Meera’s bird-song app was tested on 38 new bird songs and got 34 right. How many did it get wrong?
22. 22.📋 Planning an AI project: which comes first — improve data, retest or try unseen examples? (a) improve data, retest (b) try unseen examples
23. 23.❌ Aarav’s leaf identifier was tested on 19 new leaf photos and got 14 right. How many did it get wrong?
24. 24.🎯 Ishaan’s leaf identifier is 60% accurate. If it is tested on 10 new leaf photos, how many should it get right?
25. 25.📋 Planning an AI project: which comes first — correct bad labels or choose what to sort? (a) correct bad labels (b) choose what to sort
26. 26.🎯 Kabir’s handwriting reader was tested on 4 new handwritten letters and got 3 right. What is its accuracy in percent?
27. 27.📋 Planning an AI project: which comes first — choose what to sort or test on new photos? (a) choose what to sort (b) test on new photos
28. 28.📦 Rohan collected 60 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
29. 29.🎯 Kabir’s fruit sorter is 50% accurate. If it is tested on 80 new fruit photos, how many should it get right?
30. 30.🎯 Kabir’s handwriting reader was tested on 10 new handwritten letters and got 5 right. What is its accuracy in percent?
31. 31.📋 Planning an AI project: which comes first — label each example or improve data, retest? (a) label each example (b) improve data, retest
32. 32.📦 Ananya collected 80 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
33. 33.📋 Planning an AI project: which comes first — fix it and test again or train the model? (a) fix it and test again (b) train the model
34. 34.📋 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
35. 35.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) more labelled examples (b) fewer examples (c) a louder speaker (d) a new colour screen
36. 36.❌ Ishaan’s leaf identifier was tested on 15 new leaf photos and got 14 right. How many did it get wrong?
37. 37.🎯 Aarav’s spam spotter was tested on 50 new messages and got 30 right. What is its accuracy in percent?
38. 38.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
39. 39.📦 Meera collected 60 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
40. 40.🎯 Tara’s bird-song app was tested on 10 new bird songs and got 5 right. What is its accuracy in percent?

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