Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 631 · 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.⚖️ Two leaf identifier models were tested on the same 10 leaf photos. Model A got 10 right and Model B got 7 right. How many percentage points more accurate is Model A?
2. 2.📋 Planning an AI project: which comes first — train the model or label each example? (a) train the model (b) label each example
3. 3.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) a new colour screen (c) fewer examples (d) more labelled examples
4. 4.🎯 Aarav’s leaf identifier was tested on 20 new leaf photos and got 18 right. What is its accuracy in percent?
5. 5.🎯 Rohan’s fruit sorter was tested on 25 new fruit photos and got 17 right. What is its accuracy in percent?
6. 6.🎯 Diya’s bird-song app was tested on 10 new bird songs and got 8 right. What is its accuracy in percent?
7. 7.❌ Meera’s spam spotter was tested on 44 new messages and got 40 right. How many did it get wrong?
8. 8.🎯 Vihaan’s handwriting reader is 70% accurate. If it is tested on 50 new handwritten letters, how many should it get right?
9. 9.🧪 What is accuracy? (a) total × 2 (b) correct + total (c) correct ÷ total × 100 (d) total − correct
10. 10.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
11. 11.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 48 right and Model B got 47 right. How many percentage points more accurate is Model A?
12. 12.🎯 Meera’s bird-song app is 80% accurate. If it is tested on 60 new bird songs, how many should it get right?
13. 13.🧪 You can plan a simple AI project with… (a) only a big robot (b) a secret password (c) paper and examples (d) nothing at all
14. 14.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to save paper (c) to see if it learned (d) to make it faster
15. 15.📋 Planning an AI project: which comes first — improve data, retest or test on new photos? (a) improve data, retest (b) test on new photos
16. 16.📋 Planning an AI project: which comes first — try unseen examples or choose what to sort? (a) try unseen examples (b) choose what to sort
17. 17.🎯 Diya’s recycling sorter is 90% accurate. If it is tested on 30 new waste photos, how many should it get right?
18. 18.⚖️ Two leaf identifier models were tested on the same 25 leaf photos. Model A got 23 right and Model B got 22 right. How many percentage points more accurate is Model A?
19. 19.📋 Planning an AI project: which comes first — work out the accuracy or set aside test photos? (a) work out the accuracy (b) set aside test photos
20. 20.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 37 right and Model B got 31 right. How many percentage points more accurate is Model A?
21. 21.📋 Planning an AI project: which comes first — test on new photos or train the model? (a) test on new photos (b) train the model
22. 22.📋 Planning an AI project: which comes first — choose what to sort or work out the accuracy? (a) choose what to sort (b) work out the accuracy
23. 23.🎯 Rohan’s fruit sorter is 80% accurate. If it is tested on 60 new fruit photos, how many should it get right?
24. 24.📦 Nisha collected 150 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
25. 25.🎯 Vihaan’s handwriting reader was tested on 50 new handwritten letters and got 30 right. What is its accuracy in percent?
26. 26.📋 Planning an AI project: which comes first — test on new photos or calculate percent right? (a) test on new photos (b) calculate percent right
27. 27.📋 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
28. 28.❌ Diya’s leaf identifier was tested on 28 new leaf photos and got 20 right. How many did it get wrong?
29. 29.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 47 right and Model B got 31 right. How many percentage points more accurate is Model A?
30. 30.🎯 Aarav’s bird-song app is 50% accurate. If it is tested on 100 new bird songs, how many should it get right?
31. 31.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 23 right and Model B got 19 right. How many percentage points more accurate is Model A?
32. 32.⚖️ Two handwriting reader models were tested on the same 25 handwritten letters. Model A got 24 right and Model B got 13 right. How many percentage points more accurate is Model A?
33. 33.⚖️ Two spam spotter models were tested on the same 10 messages. Model A got 7 right and Model B got 6 right. How many percentage points more accurate is Model A?
34. 34.🎯 Arjun’s bird-song app is 70% accurate. If it is tested on 20 new bird songs, how many should it get right?
35. 35.🎯 Ishaan’s leaf identifier is 50% accurate. If it is tested on 10 new leaf photos, how many should it get right?
36. 36.📋 Planning an AI project: which comes first — let it learn patterns or work out the accuracy? (a) let it learn patterns (b) work out the accuracy
37. 37.📦 Arjun collected 70 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
38. 38.🎯 Diya’s fruit sorter is 50% accurate. If it is tested on 70 new fruit photos, how many should it get right?
39. 39.🎯 Arjun’s spam spotter is 90% accurate. If it is tested on 40 new messages, how many should it get right?
40. 40.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 9 right and Model B got 6 right. How many percentage points more accurate is Model A?

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