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Revision Notes

An Introduction To Statistics

ICSE · Class 11 · Economics

Quick revision notes for An Introduction To Statistics — ICSE Class 11 Economics. Key concepts, formulas, and definitions for last-minute revision.

64 questions36 flashcards5 concepts

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Key Topics to Revise

1

Origin and Growth of Statistics

  • The collection of numerical data is almost as old as civilisation.
  • Statistics was once mainly used by the state and kings for administration, taxes, land, population, income, and wealth.
  • In olden days, statistics was called a science of state or science of kings.
2

Meaning of Statistics in Plural Sense

  • In plural sense, statistics means data.
  • The word data is the plural form of datum, meaning the thing given.
  • Not every number is statistics; only numbers that are related to each other and have meaning in a group qualify.
3

Definitions of Statistics

  • Dr. A.L. Bowley defined statistics as numerical statements of facts in any department of enquiry placed in relation to each other.
  • Yule and Kendall defined statistics as quantitative data affected to a marked extent by multiplicity of causes.
  • Horace Secrist gave the most comprehensive definition of statistics.
4

Characteristics of Statistics

  • Statistics are aggregates of facts, not individual facts.
  • Statistics are numerically expressed.
  • Statistics are affected by multiplicity of causes.

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Full Notes

Key Concepts

Statistics began with the collectionIn plural senseIn singular senseStatistics has seven main characteristicsBowley defined statistics as numerical statements

Frequently Asked Questions

What are the important topics in An Introduction To Statistics for ICSE Class 11 Economics?
An Introduction To Statistics covers several key topics that are frequently asked in ICSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in An Introduction To Statistics — ICSE Class 11 Economics?
Understand the core concepts first, then work through the 64 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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