Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 797 · 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.🎯 Diya’s spam spotter was tested on 4 new messages and got 4 right. What is its accuracy in percent?
2. 2.📋 Planning an AI project: which comes first — correct bad labels or label each example? (a) correct bad labels (b) label each example
3. 3.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) fewer examples (b) more labelled examples (c) a new colour screen (d) a louder speaker
4. 4.🎯 Meera’s recycling sorter was tested on 25 new waste photos and got 15 right. What is its accuracy in percent?
5. 5.🧪 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
6. 6.🎯 Diya’s leaf identifier is 50% accurate. If it is tested on 70 new leaf photos, how many should it get right?
7. 7.📋 Planning an AI project: which comes first — calculate percent right or train the model? (a) calculate percent right (b) train the model
8. 8.📦 Diya collected 150 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
9. 9.🎯 Meera’s recycling sorter is 50% accurate. If it is tested on 30 new waste photos, how many should it get right?
10. 10.🧪 What is accuracy? (a) total × 2 (b) total − correct (c) correct + total (d) correct ÷ total × 100
11. 11.📋 Planning an AI project: which comes first — set aside test photos or calculate percent right? (a) set aside test photos (b) calculate percent right
12. 12.📋 Planning an AI project: which comes first — recheck every label or label each example? (a) recheck every label (b) label each example
13. 13.🎯 Meera’s handwriting reader is 90% accurate. If it is tested on 70 new handwritten letters, how many should it get right?
14. 14.📋 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
15. 15.📦 Saanvi collected 90 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
16. 16.📋 Planning an AI project: which comes first — work out the accuracy or correct bad labels? (a) work out the accuracy (b) correct bad labels
17. 17.⚖️ 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?
18. 18.📋 Planning an AI project: which comes first — fix it and test again or test on new photos? (a) fix it and test again (b) test on new photos
19. 19.📦 Nisha collected 180 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
20. 20.🎯 Ishaan’s leaf identifier was tested on 25 new leaf photos and got 21 right. What is its accuracy in percent?
21. 21.🎯 Saanvi’s spam spotter was tested on 5 new messages and got 5 right. What is its accuracy in percent?
22. 22.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 49 right and Model B got 48 right. How many percentage points more accurate is Model A?
23. 23.📋 Planning an AI project: which comes first — improve data, retest or choose what to sort? (a) improve data, retest (b) choose what to sort
24. 24.📋 Planning an AI project: which comes first — test on new photos or correct bad labels? (a) test on new photos (b) correct bad labels
25. 25.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 9 right and Model B got 7 right. How many percentage points more accurate is Model A?
26. 26.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 24 right and Model B got 15 right. How many percentage points more accurate is Model A?
27. 27.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 49 right and Model B got 32 right. How many percentage points more accurate is Model A?
28. 28.🎯 Rohan’s fruit sorter is 80% accurate. If it is tested on 50 new fruit photos, how many should it get right?
29. 29.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 44 right and Model B got 26 right. How many percentage points more accurate is Model A?
30. 30.📋 Planning an AI project: which comes first — split train and test or work out the accuracy? (a) split train and test (b) work out the accuracy
31. 31.📦 Diya collected 170 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
32. 32.⚖️ Two spam spotter models were tested on the same 20 messages. Model A got 14 right and Model B got 10 right. How many percentage points more accurate is Model A?
33. 33.📋 Planning an AI project: which comes first — try unseen examples or choose what to sort? (a) try unseen examples (b) choose what to sort
34. 34.🎯 Saanvi’s recycling sorter is 50% accurate. If it is tested on 10 new waste photos, how many should it get right?
35. 35.🎯 Tara’s recycling sorter was tested on 5 new waste photos and got 5 right. What is its accuracy in percent?
36. 36.📋 Planning an AI project: which comes first — split train and test or try unseen examples? (a) split train and test (b) try unseen examples
37. 37.⚖️ Two recycling sorter models were tested on the same 25 waste photos. Model A got 22 right and Model B got 15 right. How many percentage points more accurate is Model A?
38. 38.📋 Planning an AI project: which comes first — choose what to sort or collect fruit photos? (a) choose what to sort (b) collect fruit photos
39. 39.📋 Planning an AI project: which comes first — recheck every label or let it learn patterns? (a) recheck every label (b) let it learn patterns
40. 40.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 24 right and Model B got 13 right. How many percentage points more accurate is Model A?

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