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Chapter Summary

Probability

ICSE · Class 7 · Mathematics

Summary of Probability for ICSE Class 7 Mathematics. Key concepts, important points, and chapter overview.

61 questions25 flashcards5 concepts

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Overview

Probability means likelihood. It is the study of how likely something is to happen. Words such as probably, chance, chances, and most likely show uncertainty. The measure of uncertainty of an event is called Theory of Probability. A coin toss, a die throw, or choosing an item at random are common ex

Key Concepts

An outcome is a well

An outcome is a well-defined result of an experiment. For a single coin toss, head and tail are outcomes. For a die throw, the outcomes are 1, 2, 3, 4

An event is the collection

An event is the collection of some favourable outcomes. For example, getting an odd number on a die throw is an event with outcomes 1, 3, and 5.

An experiment is an operation

An experiment is an operation which can produce some well-defined outcomes. Tossing a coin, throwing a die, or choosing a student at random are exampl

Empirical probability is calculated from actual

Empirical probability is calculated from actual trials. The formula is P(E) = Number of trials in which the event happened / Total number of trials. T

Two events are complementary if exactly

Two events are complementary if exactly one of them occurs. For an event E, the complementary event is E'. E' is the event when E does not occur. The

Learning Objectives

  • Understand the meaning of probability and uncertainty
  • Identify outcomes, events, and experiments
  • Use empirical probability to find the chance of an event
  • Work with examples based on coins, dice, and simple choices
  • Recognize complementary events and use the relation P(E) + P(E') = 1

Frequently Asked Questions

What are the important topics in Probability for ICSE Class 7 Mathematics?
Probability covers several key topics that are frequently asked in ICSE Class 7 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 7 Mathematics?
Understand the core concepts first, then work through the 61 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 Probability

All 25 chapters — ICSE Class 7 Mathematics Chapter Summary

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