MathematicsChapter 11: Basic Statistics
Pie Chart
Only for parts of one total.
Learning objectives
- Define and explain pie chart.
- Apply pie chart to a focused FBISE question.
- Check the answer for correct terms, evidence, working, and units.
Definition
Only for parts of one total. Find each angle, check they sum to 360 deg (small rounding is allowed). A pie is a poor choice for many tiny categories or for showing change over time (use a line graph).
Where / symbols
- Pie Chart
- Only for parts of one total. Find each angle, check they sum to 360 deg (small rounding is allowed). A pie is a poor choice for many tiny categories or for showing change over time (use a line graph).
Overview
Learn the idea, then use it:
Core Understanding
Only for parts of one total. Find each angle, check they sum to 360 deg (small rounding is allowed). A pie is a poor choice for many tiny categories or for showing change over time (use a line graph).
Examples parts of one total · angles sum 360 · polygon joins midpoints · PIE CHART: Only for parts of one total. Find each angle, check they sum to 360 deg (small rounding is allowed). A pie is a poor cho
Exam Application
State the correct term, connect it to the chapter rule or evidence, and use a clear example or calculation.
Examples Define first · Show the rule or evidence · Check units, labels, and conclusion
WHAT — PIE CHART
Only for parts of one total. Find each angle, check they sum to 360 deg (small rounding is allowed). A pie is a poor choice for many tiny categories or for showing change over time (use a line graph).
HOW — Use the idea
Identify what is given, select this topic's rule or evidence, apply it one step at a time, and check the result.
In simple words
Do not merge pie chart with a neighbouring idea that uses a different definition, rule, or method.
Key points
- parts of one total
- angles sum 360
- polygon joins midpoints
Exam preparation
Exam Focus
Quick revision
Revision Zone
Review the key facts, formulas and checks before you move on.Pie Chart
Sticky Notes · Quick Revision
Core Idea
- Only for parts of one total.
Key Points
- parts of one total
- angles sum 360
- polygon joins midpoints
Simple Check
- Explain pie chart in your own words and connect it to one chapter example.
How to Answer
- Define the idea, show the main rule or evidence, apply it, and check the final statement.
Common Mistake
- Do not merge pie chart with a neighbouring idea that uses a different definition, rule, or method.
FBISE Exam Tip
- Use the exact term, show working where needed, and include units or labelled evidence.
60-second revision
- Only for parts of one total.
- parts of one total
- angles sum 360
- polygon joins midpoints
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