Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 92 · 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) total − correct (b) correct ÷ total × 100 (c) total × 2 (d) correct + total
2. 2.🎯 Kabir’s leaf identifier is 80% accurate. If it is tested on 40 new leaf photos, how many should it get right?
3. 3.📦 Arjun collected 190 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
4. 4.🧪 You can plan a simple AI project with… (a) paper and examples (b) nothing at all (c) a secret password (d) only a big robot
5. 5.🧪 Why must you test a model on examples it has NOT seen? (a) to see if it learned (b) to save paper (c) to make it bigger (d) to make it faster
6. 6.🎯 Kabir’s fruit sorter was tested on 20 new fruit photos and got 12 right. What is its accuracy in percent?
7. 7.🎯 Aarav’s spam spotter is 70% accurate. If it is tested on 40 new messages, how many should it get right?
8. 8.🎯 Ananya’s fruit sorter is 60% accurate. If it is tested on 40 new fruit photos, how many should it get right?
9. 9.❌ Kabir’s leaf identifier was tested on 17 new leaf photos and got 13 right. How many did it get wrong?
10. 10.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 19 right and Model B got 17 right. How many percentage points more accurate is Model A?
11. 11.📦 Tara collected 140 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
12. 12.📦 Saanvi collected 160 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
13. 13.🎯 Vihaan’s fruit sorter is 60% accurate. If it is tested on 50 new fruit photos, how many should it get right?
14. 14.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 9 right and Model B got 8 right. How many percentage points more accurate is Model A?
15. 15.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a new colour screen (b) more labelled examples (c) a louder speaker (d) fewer examples
16. 16.🎯 Vihaan’s bird-song app is 70% accurate. If it is tested on 100 new bird songs, how many should it get right?
17. 17.🎯 Rohan’s fruit sorter is 60% accurate. If it is tested on 100 new fruit photos, how many should it get right?
18. 18.📦 Aarav collected 50 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
19. 19.📋 Planning an AI project: which comes first — split train and test or collect fruit photos? (a) split train and test (b) collect fruit photos
20. 20.📋 Planning an AI project: which comes first — test on new photos or improve data, retest? (a) test on new photos (b) improve data, retest
21. 21.🎯 Ishaan’s bird-song app was tested on 25 new bird songs and got 25 right. What is its accuracy in percent?
22. 22.🎯 Kabir’s bird-song app was tested on 50 new bird songs and got 25 right. What is its accuracy in percent?
23. 23.🎯 Rohan’s leaf identifier was tested on 4 new leaf photos and got 2 right. What is its accuracy in percent?
24. 24.❌ Kabir’s fruit sorter was tested on 29 new fruit photos and got 28 right. How many did it get wrong?
25. 25.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 8 right and Model B got 6 right. How many percentage points more accurate is Model A?
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.⚖️ Two leaf identifier models were tested on the same 50 leaf photos. Model A got 45 right and Model B got 37 right. How many percentage points more accurate is Model A?
28. 28.❌ Meera’s handwriting reader was tested on 40 new handwritten letters and got 33 right. How many did it get wrong?
29. 29.📋 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
30. 30.🎯 Saanvi’s spam spotter is 60% accurate. If it is tested on 60 new messages, how many should it get right?
31. 31.🎯 Ananya’s fruit sorter is 50% accurate. If it is tested on 60 new fruit photos, how many should it get right?
32. 32.📋 Planning an AI project: which comes first — fix it and test again or work out the accuracy? (a) fix it and test again (b) work out the accuracy
33. 33.⚖️ Two handwriting reader models were tested on the same 50 handwritten letters. Model A got 37 right and Model B got 33 right. How many percentage points more accurate is Model A?
34. 34.📋 Planning an AI project: which comes first — train the model or fix it and test again? (a) train the model (b) fix it and test again
35. 35.🎯 Meera’s spam spotter is 70% accurate. If it is tested on 90 new messages, how many should it get right?
36. 36.🎯 Nisha’s fruit sorter was tested on 5 new fruit photos and got 3 right. What is its accuracy in percent?
37. 37.🎯 Ananya’s fruit sorter was tested on 5 new fruit photos and got 3 right. What is its accuracy in percent?
38. 38.📦 Saanvi collected 170 labelled fruit photos for a fruit sorter and keeps one fifth of them for testing. How many are left for training?
39. 39.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 23 right and Model B got 22 right. How many percentage points more accurate is Model A?
40. 40.📋 Planning an AI project: which comes first — pick a question to solve or split train and test? (a) pick a question to solve (b) split train and test

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