Download the official Introduction to Probability chapter from the new Ganita Manjari textbook here. This Class 9 Maths Book PDF Chapter 7 Introduction to Probability is the exact NCERT file for the 2026-27 session. Read it to learn chance, events, and the probability formula from the source before your Class 9 annual exam.
- Length: the official chapter PDF runs to 19 pages of text, tables, and exercises.
- What it teaches: outcomes, sample space, experimental and theoretical probability.
- New book: this is the 2026-27 Ganita Manjari book, so this is now Chapter 7.
This is the original NCERT chapter file, matched to the current 2026-27 syllabus, so every page, table, and exercise number is exactly what your teacher uses in class.
What's in the Class 9 Maths Introduction to Probability NCERT Book PDF?
The Class 9 Maths Book PDF Chapter 7 Introduction to Probability is a 19-page chapter. It starts with the idea of chance, outcomes, and sample space, then places every event on a scale from impossible to certain. The file explains experimental probability from trials and theoretical probability from equally likely outcomes, covers two coins and two dice, and ends with the complement rule, four exercise sets, and an End-of-Chapter set.
Video Chapter Walkthrough
Source: Magnet Brains on YouTube
Introduction to Probability Section-by-Section Overview
The chapter builds from words about chance to a working formula. The table below maps each section to what you will learn.
| Section | Topic | What you will learn |
|---|---|---|
| What Is Probability? | Chance and events | Outcomes, events, and the sample space of an experiment |
| The Probability Scale | Impossible to certain | Turning words about chance into numbers between 0 and 1 |
| Experimental Probability | Relative frequency | Estimating chance from the results of many trials |
| Theoretical Probability | Equally likely outcomes | The formula for dice, coins, and cards |
| Two Objects Together | Two coins and two dice | Counting outcomes when two objects are used at once |
| Working with Probability | The complement rule | Finding the chance of an event not happening |
Solved Examples and Exercises in Introduction to Probability
The chapter gives in-text solved examples first, then exercise sets to practise. Read the solved examples before you try each set.
- Exercises 7.1 to 7.4: four sets covering the scale, experiments, and counting outcomes.
- End-of-Chapter Exercises: mixed problems that pull the whole chapter together.
- In-text solved examples: step-by-step models placed through the chapter text.
What Changed in the 2026-27 Introduction to Probability Chapter
This chapter comes from the new Ganita Manjari book, which replaces the old 15-chapter NCERT Maths book. The new book is activity-based, so probability begins with real coin and dice trials before the formula appears. The old book gave probability only a light, single-topic treatment. Now it is a full Chapter 7 that links experiment to theory step by step.
How to Read the Introduction to Probability Chapter
Read the Class 9 Maths Book PDF Chapter 7 Introduction to Probability with a coin or a die to try the trials. Skim once to see the flow, then read slowly and list the sample space for each example. Work through the solved examples, and only then try the exercises. This skim, then detail, then examples, then exercises order makes chance feel real.
How will Collegedunia Help You with the Introduction to Probability NCERT Book?
Collegedunia pairs the Class 9 Maths Book PDF Chapter 7 Introduction to Probability with free study support, so the counting stays simple.
- Free download: get the official chapter PDF in one click, with no sign-up.
- Matched resources: open the notes, formula sheet, and solutions for the same chapter.
- 2026-27 ready: every linked resource follows the new Ganita Manjari book.
- Exam focus: the support is framed for your Class 9 annual exam and the base for Class 10 statistics.
More Introduction to Probability Maths Class 9 Resources
Use the box below to open other study resources for the same chapter.
NCERT Book PDF for Class 9 Maths: All Chapters
Use the table below to open the NCERT Book PDF for any other chapter of the new Class 9 Maths book.
| Chapter | Resource |
|---|---|
| Chapter 1 | Coordinates NCERT Book PDF |
| Chapter 2 | Linear Polynomials NCERT Book PDF |
| Chapter 3 | The World of Numbers NCERT Book PDF |
| Chapter 4 | Algebraic Identities NCERT Book PDF |
| Chapter 5 | Circles NCERT Book PDF |
| Chapter 6 | Perimeter and Area NCERT Book PDF |
| Chapter 7 | Introduction to Probability NCERT Book PDF |
| Chapter 8 | Sequences and Progressions NCERT Book PDF |
Introduction to Probability Class 9 Maths NCERT Book PDF FAQs
Ques. How many pages is the Class 9 Maths Introduction to Probability NCERT Book PDF?
Ans. The official Chapter 7 Introduction to Probability file runs to 19 pages. It holds the full text, tables, four exercise sets, and the End-of-Chapter set.
Ques. Is Introduction to Probability part of the new Ganita Manjari book?
Ans. Yes. It is Chapter 7 of the new Ganita Manjari book for the 2026-27 syllabus. The old NCERT book gave probability only a short, single-topic treatment.
Ques. Is this the official NCERT chapter PDF?
Ans. Yes. This is the original NCERT chapter file, not a copy, so the pages and exercise numbers match the book your school uses.
Ques. What exercises does Chapter 7 have?
Ans. The chapter has four exercise sets, 7.1 to 7.4, and one End-of-Chapter set, along with in-text solved examples.
Ques. What is the difference between experimental and theoretical probability?
Ans. Experimental probability comes from the results of real trials, while theoretical probability is worked out from equally likely outcomes. The chapter covers both.
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