Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 502 · 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.🎯 Rohan’s recycling sorter was tested on 5 new waste photos and got 5 right. What is its accuracy in percent?
2. 2.❌ Kabir’s fruit sorter was tested on 37 new fruit photos and got 35 right. How many did it get wrong?
3. 3.🎯 Diya’s spam spotter was tested on 5 new messages and got 3 right. What is its accuracy in percent?
4. 4.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 10 right and Model B got 6 right. How many percentage points more accurate is Model A?
5. 5.📋 Planning an AI project: which comes first — recheck every label or tag each photo by type? (a) recheck every label (b) tag each photo by type
6. 6.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a new colour screen (b) a louder speaker (c) fewer examples (d) more labelled examples
7. 7.🎯 Diya’s spam spotter was tested on 50 new messages and got 27 right. What is its accuracy in percent?
8. 8.🎯 Saanvi’s handwriting reader is 60% accurate. If it is tested on 30 new handwritten letters, how many should it get right?
9. 9.🎯 Meera’s bird-song app was tested on 50 new bird songs and got 25 right. What is its accuracy in percent?
10. 10.📋 Planning an AI project: which comes first — test on new photos or split train and test? (a) test on new photos (b) split train and test
11. 11.❌ Nisha’s spam spotter was tested on 21 new messages and got 18 right. How many did it get wrong?
12. 12.🎯 Arjun’s leaf identifier is 70% accurate. If it is tested on 20 new leaf photos, how many should it get right?
13. 13.🎯 Nisha’s fruit sorter was tested on 50 new fruit photos and got 31 right. What is its accuracy in percent?
14. 14.🎯 Arjun’s handwriting reader is 80% accurate. If it is tested on 70 new handwritten letters, how many should it get right?
15. 15.📋 Planning an AI project: which comes first — calculate percent right or tag each photo by type? (a) calculate percent right (b) tag each photo by type
16. 16.⚖️ Two bird-song app models were tested on the same 50 bird songs. Model A got 34 right and Model B got 32 right. How many percentage points more accurate is Model A?
17. 17.📦 Arjun collected 90 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
18. 18.🎯 Aarav’s bird-song app was tested on 50 new bird songs and got 48 right. What is its accuracy in percent?
19. 19.❌ Meera’s handwriting reader was tested on 47 new handwritten letters and got 43 right. How many did it get wrong?
20. 20.❌ Vihaan’s handwriting reader was tested on 21 new handwritten letters and got 15 right. How many did it get wrong?
21. 21.🎯 Meera’s bird-song app was tested on 20 new bird songs and got 12 right. What is its accuracy in percent?
22. 22.🧪 What is accuracy? (a) total − correct (b) correct + total (c) correct ÷ total × 100 (d) total × 2
23. 23.📦 Tara collected 110 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
24. 24.🎯 Rohan’s handwriting reader was tested on 50 new handwritten letters and got 26 right. What is its accuracy in percent?
25. 25.📋 Planning an AI project: which comes first — train the model or pick a question to solve? (a) train the model (b) pick a question to solve
26. 26.📋 Planning an AI project: which comes first — improve data, retest or work out the accuracy? (a) improve data, retest (b) work out the accuracy
27. 27.📋 Planning an AI project: which comes first — tag each photo by type or gather many examples? (a) tag each photo by type (b) gather many examples
28. 28.❌ Rohan’s bird-song app was tested on 26 new bird songs and got 17 right. How many did it get wrong?
29. 29.❌ Meera’s handwriting reader was tested on 35 new handwritten letters and got 34 right. How many did it get wrong?
30. 30.🎯 Meera’s leaf identifier is 50% accurate. If it is tested on 100 new leaf photos, how many should it get right?
31. 31.❌ Kabir’s spam spotter was tested on 37 new messages and got 33 right. How many did it get wrong?
32. 32.📦 Meera collected 180 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 — pick a question to solve or try unseen examples? (a) pick a question to solve (b) try unseen examples
34. 34.📋 Planning an AI project: which comes first — tag each photo by type or test on new photos? (a) tag each photo by type (b) test on new photos
35. 35.📦 Arjun collected 160 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
36. 36.📋 Planning an AI project: which comes first — work out the accuracy or split train and test? (a) work out the accuracy (b) split train and test
37. 37.📋 Planning an AI project: which comes first — test on new photos or calculate percent right? (a) test on new photos (b) calculate percent right
38. 38.⚖️ Two spam spotter models were tested on the same 25 messages. Model A got 23 right and Model B got 19 right. How many percentage points more accurate is Model A?
39. 39.📋 Planning an AI project: which comes first — choose what to sort or recheck every label? (a) choose what to sort (b) recheck every label
40. 40.📋 Planning an AI project: which comes first — train the model or test on new photos? (a) train the model (b) test on new photos

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