Skip to main content
Super TutorResources
Chapter 17 of 18
Revision Notes

Statistics — Revision Notes

ICSE · Class 11 · Mathematics

Statistics revision notes for ICSE Class 11 Mathematics: 4 topics in quick points. Part of the ICSE Class 11 Mathematics syllabus.

59 questions36 flashcards10 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Statistics? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

Free trial, no card needed.

A simple list or diagram showing the main types of measures of dispersion: Range, Quartile Deviation, Mean Deviation, and Standard Deviation.
Super Tutor

One of 2 illustrations for Statistics in Super Tutor — alongside flashcards, concept maps and practice questions.

Key Topics to Revise

1

1. Types of Data and Frequency Distributions

  • Ungrouped data is data that has not been organised into groups.
  • Grouped data is data that has been organised into groups.
  • Discrete frequency distribution lists distinct values with their frequencies.
2

2. Measures of Central Tendency

  • A measure of central tendency is a single value that describes the characteristic of the entire data.
  • The main measures are arithmetic mean, median, and mode.
  • Arithmetic mean is the most commonly used representative value.
3

3. Measures of Dispersion

  • Measure of dispersion tells how scattered the data are around a central value.
  • The main measures are range, mean deviation, and standard deviation.
  • Range is the simplest measure of dispersion.
4

4. Properties of Variance and Standard Deviation

  • The sum of deviations of observations from their arithmetic mean is always zero.
  • The sum of squares of deviations about the arithmetic mean is minimum compared with any other value.
  • Variance is independent of the choice of assumed mean a.

Get complete notes with diagrams and examples

Full Notes

Key Concepts

Ungrouped data is an unorganised listArithmetic mean is the most commonlyMedian is the central valueMode is the value with maximumRange is the simplest measure

Frequently Asked Questions

What are the important topics in Statistics for ICSE Class 11 Mathematics?
Key topics in Statistics include Types of Data and Frequency Distributions, Measures of Central Tendency, Measures of Dispersion, Properties of Variance and Standard Deviation. Study these first, then practise questions on each for Class 11 exams.
How should I revise Statistics for Class 11 exams?
Learn the core ideas first, then work through the 59 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.

More resources for Statistics

All ICSE Class 11 Mathematics Revision Notes

For serious students

Get the full Statistics chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 11 Mathematics. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free