📘 Chapter 8 · Data Handling
Tables, graphs, mean, mode, range — how to read what numbers tell you.
📖 Lessons coming soon
Full lesson content unlocks when class reaches this chapter. Practice and Exam are ready right now — give them a go!
✍️ Practice
1. Mean (average)
Add them, divide by how many.
Mean of 4, 6, 8, 10 =
Mean of 5, 10, 15, 20, 25 =
Mean of 2, 4, 6 =
Mean of 6, 7, 8, 9, 10 =
2. Mode (most common)
Mode of 2, 3, 3, 4, 5 =
Mode of 7, 8, 8, 8, 9, 10 =
Mode of 3, 5, 5, 7, 9 =
Mode of 4, 4, 6, 7, 4, 8 =
3. Range (max − min)
Range of 5, 8, 12, 15 =
Range of 3, 7, 9, 2, 11 =
Range of 12, 4, 18, 6, 9 =
Range of 5, 5, 5, 5 =
4. Graph types
Type: bar / pie / line / pictograph
Uses rectangles to show data:
Uses circular slices:
Uses pictures or symbols:
Uses connected dots to show changes over time:
5. Crispin's quiz scores: 5, 8, 10, 7, 5
Mean =
Mode =
Range =
Total score =
6. Pictograph (1 ⚽ = 5 goals)
⚽⚽⚽⚽ = __ goals
⚽⚽⚽⚽⚽⚽⚽ = __ goals
⚽⚽ = __ goals
⚽⚽⚽⚽⚽⚽⚽⚽⚽⚽ = __ goals
📝 Chapter Exam
25 mixed questions, hard timer of 30 sec per question. Navigate freely between questions, mark for review, and submit when ready.
- ✓ All answers reviewed at the end with the correct answer + 💡 rationale
- ✓ Optional email delivery to a parent at submission
- ✓ Star rating + XP awarded based on your score