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Chapter 22 of 22
Revision Notes

Probability

ICSE · Class 10 · Mathematics

Quick revision notes for Probability — ICSE Class 10 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

32 questions24 flashcards5 concepts

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A Venn diagram showing a sample space (S) and an event (A), with the region outside A but within S shaded to represent the complementary event (A').
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Key Topics to Revise

1

1. Basic Ideas: Experiment, Sample Space, and Event

  • A random experiment is an operation that gives some outcomes under given conditions.
  • Tossing a coin, throwing a die, and selecting a card from a pack are random experiments.
  • The sample space is the set of all possible outcomes of a random experiment.
2

2. Simple Events and Examples

  • An event is called a simple event if it contains only one element.
  • A simple event is the same as an elementary event.
  • Getting a head when a coin is tossed is a simple event.
3

3. Playing Cards and Equally Likely Events

  • A pack of playing cards has 52 cards in all.
  • A pack of cards has 26 red cards and 26 black cards.
  • A pack of cards has 4 suits.
4

4. Probability of an Event

  • Probability estimates the degree of uncertainty regarding the happening of a given phenomenon.
  • Probability of an event equals number of favourable cases divided by total number of cases.
  • The number of favourable cases is always less than or equal to the total number of cases.

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Full Notes

Key Concepts

An operation which gives some outcomesThe set of all possible outcomesAny outcome or combination of outcomesAn event containing only one elementEvents are equally likely when no

Frequently Asked Questions

What are the important topics in Probability for ICSE Class 10 Mathematics?
Probability covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Probability — ICSE Class 10 Mathematics?
Understand the core concepts first, then work through the 32 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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