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Syllabus

Statistics — Syllabus

ICSE · Class 9 · Mathematics

What Statistics covers in ICSE Class 9 Mathematics: 4 topics, for the 2026-27 session. Part of the ICSE Class 9 Mathematics syllabus.

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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4 Topics · ICSE Class 9 Mathematics · 2026-27

Topics in Statistics

1

1. Data, Statistics, and Variable

  • A set of collected numerical facts is called a set of data.
  • Statistics is used in two different senses: singular and plural.
  • As a singular term, Statistics means the whole subject dealing with collecting, analysing, and interpreting data.
2

2. Tabulation, Frequency, and Frequency Distribution

  • Tabulation means arranging data in a table.
  • A frequency tells how many times a particular data value appears in a set of data.
  • Frequency distribution is a tabular arrangement of data showing corresponding frequencies.
3

3. Grouped Frequency Distribution and Class Intervals

  • Grouped frequency distribution uses class intervals instead of single values.
  • There are two types of frequency distributions in general: inclusive and exclusive.
  • In an inclusive distribution, the upper limit of one class does not coincide with the lower limit of the next class.
4

4. Class-Size and Class-Mark

  • Class-size is the difference between the actual lower limit and actual upper limit of a class interval.
  • Class-mark is the value midway between the actual lower limit and actual upper limit.
  • Class-mark is also called mid-value.

Key Concepts

Central concept: Statistics

IntroductionDataVariableRaw and Arrayed DataTabulationFrequencyFrequency DistributionGrouped Data

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Frequently Asked Questions

What are the important topics in Statistics for ICSE Class 9 Mathematics?
Key topics in Statistics include Data, Statistics, and Variable, Tabulation, Frequency, and Frequency Distribution, Grouped Frequency Distribution and Class Intervals, Class-Size and Class-Mark. Study these first, then practise questions on each for Class 9 exams.
How should I revise Statistics for Class 9 exams?
Learn the core ideas first, then work through the 41 practice questions on Statistics. Revise 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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All ICSE Class 9 Mathematics Syllabus

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