Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 397 · 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.🎯 Kabir’s spam spotter was tested on 4 new messages and got 2 right. What is its accuracy in percent?
2. 2.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 18 right and Model B got 17 right. How many percentage points more accurate is Model A?
3. 3.⚖️ Two bird-song app models were tested on the same 20 bird songs. Model A got 19 right and Model B got 14 right. How many percentage points more accurate is Model A?
4. 4.📋 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
5. 5.🎯 Saanvi’s fruit sorter is 50% accurate. If it is tested on 30 new fruit photos, how many should it get right?
6. 6.📋 Planning an AI project: which comes first — collect fruit photos or label each example? (a) collect fruit photos (b) label each example
7. 7.🎯 Aarav’s handwriting reader was tested on 10 new handwritten letters and got 8 right. What is its accuracy in percent?
8. 8.📋 Planning an AI project: which comes first — split train and test or improve data, retest? (a) split train and test (b) improve data, retest
9. 9.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
10. 10.📋 Planning an AI project: which comes first — try unseen examples or split train and test? (a) try unseen examples (b) split train and test
11. 11.🎯 Ananya’s handwriting reader was tested on 20 new handwritten letters and got 15 right. What is its accuracy in percent?
12. 12.📦 Rohan collected 150 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
13. 13.📋 Planning an AI project: which comes first — test on new photos or choose what to sort? (a) test on new photos (b) choose what to sort
14. 14.📋 Planning an AI project: which comes first — improve data, retest or label each example? (a) improve data, retest (b) label each example
15. 15.🎯 Ishaan’s bird-song app was tested on 5 new bird songs and got 5 right. What is its accuracy in percent?
16. 16.📋 Planning an AI project: which comes first — set aside test photos or correct bad labels? (a) set aside test photos (b) correct bad labels
17. 17.❌ Kabir’s bird-song app was tested on 30 new bird songs and got 29 right. How many did it get wrong?
18. 18.❌ Aarav’s recycling sorter was tested on 20 new waste photos and got 18 right. How many did it get wrong?
19. 19.🎯 Kabir’s bird-song app is 70% accurate. If it is tested on 30 new bird songs, how many should it get right?
20. 20.📋 Planning an AI project: which comes first — calculate percent right or set aside test photos? (a) calculate percent right (b) set aside test photos
21. 21.⚖️ Two handwriting reader models were tested on the same 10 handwritten letters. Model A got 10 right and Model B got 5 right. How many percentage points more accurate is Model A?
22. 22.🧪 What is accuracy? (a) correct ÷ total × 100 (b) total × 2 (c) correct + total (d) total − correct
23. 23.🧪 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
24. 24.⚖️ Two bird-song app models were tested on the same 10 bird songs. Model A got 10 right and Model B got 8 right. How many percentage points more accurate is Model A?
25. 25.📦 Ishaan collected 50 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
26. 26.🎯 Nisha’s spam spotter is 80% accurate. If it is tested on 90 new messages, how many should it get right?
27. 27.🎯 Diya’s handwriting reader is 90% accurate. If it is tested on 30 new handwritten letters, how many should it get right?
28. 28.🎯 Tara’s leaf identifier was tested on 5 new leaf photos and got 3 right. What is its accuracy in percent?
29. 29.📋 Planning an AI project: which comes first — calculate percent right or train the model? (a) calculate percent right (b) train the model
30. 30.📋 Planning an AI project: which comes first — improve data, retest or collect fruit photos? (a) improve data, retest (b) collect fruit photos
31. 31.📦 Nisha collected 90 labelled messages for a spam spotter and keeps one fifth of them for testing. How many are left for training?
32. 32.📦 Saanvi collected 190 labelled leaf photos for a leaf identifier and keeps one fifth of them for testing. How many are left for training?
33. 33.🎯 Kabir’s handwriting reader is 50% accurate. If it is tested on 80 new handwritten letters, how many should it get right?
34. 34.📦 Rohan collected 90 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
35. 35.⚖️ Two spam spotter models were tested on the same 50 messages. Model A got 49 right and Model B got 47 right. How many percentage points more accurate is Model A?
36. 36.🧪 Why must you test a model on examples it has NOT seen? (a) to make it faster (b) to make it bigger (c) to see if it learned (d) to save paper
37. 37.📦 Aarav collected 160 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
38. 38.❌ Aarav’s spam spotter was tested on 33 new messages and got 25 right. How many did it get wrong?
39. 39.📋 Planning an AI project: which comes first — correct bad labels or calculate percent right? (a) correct bad labels (b) calculate percent right
40. 40.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 10 right and Model B got 9 right. How many percentage points more accurate is Model A?

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