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Chapter Summary

Statistics

ICSE · Class 9 · Mathematics

Summary of Statistics for ICSE Class 9 Mathematics. Key concepts, important points, and chapter overview.

41 questions30 flashcards5 concepts

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An illustration comparing raw (ungrouped) data, arrayed data (sorted), and tabulated data (organized in a basic table with categories and totals).
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Overview

Statistics is derived from Latin 'Status', Italian 'Statista', or German 'Statistik', each meaning 'Political State'. Statistics is used in two different senses: singular and plural. In the singular sense, Statistics refers to the branch of knowledge that deals with collecting, analysing, and interp

Key Concepts

Statistics has two meanings

Statistics has two meanings. As a subject, it is the branch of knowledge dealing with methods of collecting, analysing, and interpreting data. As nume

A set of collected numerical facts

A set of collected numerical facts is called a set of data.

A quantity which can vary from

A quantity which can vary from one individual to another is called a variable.

A variable which can take any

A variable which can take any numerical value within a certain range is called a continuous variable. Examples include wages of persons, heights of ch

A variable which is incapable

A variable which is incapable of taking all possible numerical values is called a discrete variable. The number of children in a family is an example.

Learning Objectives

  • Understand the meaning of Statistics in singular and plural senses
  • Identify data and distinguish it from raw or arrayed data
  • Classify variables as continuous or discrete
  • Represent data using tabulation and frequency distribution
  • Understand inclusive and exclusive frequency distributions

Frequently Asked Questions

What are the important topics in Statistics for ICSE Class 9 Mathematics?
Statistics covers several key topics that are frequently asked in ICSE Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Statistics — ICSE Class 9 Mathematics?
Understand the core concepts first, then work through the 41 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.

More resources for Statistics

All 28 chapters — ICSE Class 9 Mathematics Chapter Summary

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