Measures of Central Tendency · Class 11 Economics · Chapter 5
📊 Measures of Central Tendency
CBSE Class 11 Humanities & Commerce · Statistics for Economics, Cl-11 · Chapter 1
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Six free PDFs + an editable PPTX cover every angle of this chapter — read the deck, drill the MCQs, sit the full paper, then check against the marking scheme.
Full lecture deck with teaching paragraphs, misconception red-boxes, and glossary. Read this first.
Download PDF →15 pattern-tagged MCQs with per-Q time budget. Drill under a 20-min timer.
Download PDF →Full exam-pattern paper with sections. Sit it closed-book before checking the marking scheme.
Download PDF →Model answers + topper-template structures examiners reward with full credit.
Download PDF →1-page exam-day card: key points, top question patterns, 90-minute revision flow.
Download PDF →1-page plain-language parent guide: what's being learned + questions to ask your child.
Download PDF →Top question patterns · CBSE annual / SQP aggregate
| 88% | AM by step-deviation method (5 classes) — Pick middle class-mark as A; h = class size; tabulate carefully. | 4 MARKS |
| 80% | Median of continuous data — Build c.f. column; find N/2; identify median class; apply formula. | 4 MARKS |
| 70% | Mode using formula — Locate modal class; record f₀, f₁, f₂; plug in. | 3 MARKS |
| 65% | Empirical relation 1-mark MCQ — Mode = 3Median − 2Mean OR Mean − Mode = 3(Mean − Median). | 1 MARKS |
| 60% | Choosing right measure / 1-mark conceptual — Open-end classes → median; qualitative data → mode; symmetric → mean. | 1 MARKS |