Cheat sheet · Class 11 · CBSE · Commerce Economics
Statistics: Presentation of Data cheat sheet
The whole chapter on one page: key formulas, facts and the points to remember, for quick revision before a test.
CBSE Class 11 · Economics
Cheat sheet
Chapter 4Statistics: Presentation of Data
Textual, Tabular, Diagrammatic — three ways to present.
1. Tables
- Parts: table number, title, captions (columns), stubs (rows), body, unit, source, note.
- Qualitative, quantitative, temporal, spatial classification.
2. Diagrams
| Type | Use |
|---|---|
| Bar diagram (simple, multiple, component) | compare categories |
| Pie diagram | share of parts in a whole (angle = % × 3.6°) |
| Histogram | continuous frequency distribution (no gaps) |
| Frequency polygon | join mid-points of histogram tops |
| Ogive (less than / more than) | cumulative frequency; median at intersection |
| Arithmetic line graph | time series |
3. Key Points
- Bar widths equal, gaps equal.
- Histogram area ∝ frequency.
- Pie needs percentages.
- Ogives intersect at the median.
Remember: Table parts | bar, pie, histogram, ogive
Statistics: Presentation of Data: questions and notes
More Class 11 · CBSE · Commerce Economics cheat sheets
- Statistics: Introduction
- Statistics: Collection of Data
- Statistics: Organisation of Data
- Statistics: Presentation of Data
- Statistics: Measures of Central Tendency
- Statistics: Correlation
- Statistics: Index Numbers
- Microeconomics: Introduction
- Microeconomics: Theory of Consumer Behaviour
- Microeconomics: Production and Costs
- Microeconomics: The Theory of the Firm under Perfect Competition
- Microeconomics: Market Equilibrium
Practise Statistics: Presentation of Data
Sign up free to practise the full chapter. Questions you get wrong come back until you've mastered them.
Start practising freeFree to start · No credit card needed