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Probability

ICSE · Class 7 · Mathematics

Complete topic list for Probability in ICSE Class 7 Mathematics. Key concepts, sub-topics, and what to focus on for board exams.

61 questions25 flashcards5 concepts

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4 Topics · ICSE Class 7 Mathematics

Topics in Probability

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1. Basic Ideas of Probability

  • An experiment is an operation which can produce some well-defined outcomes.
  • An outcome is a well-defined result of an experiment.
  • A single coin toss has two outcomes: head and tail.
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2. Empirical Probability

  • Empirical probability is based on actual trials or observations.
  • The probability of an event is found by dividing the number of trials in which the event happened by the total number of trials.
  • The same idea can also be written as favourable outcomes divided by total outcomes in simple situations.
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3. Solved Examples and Answer Patterns

  • For a coin tossed 40 times with 14 heads, probability of head = 14/40 = 7/20.
  • For the same experiment, probability of tail = 26/40 = 13/20.
  • For 400 students, 165 like tea only, 120 like coffee only, and 115 like both.
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4. Complementary Events

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

Key Concepts

Central concept: Probability as the measure of uncertainty in an experiment

ProbabilityExperimentOutcomeEventEmpirical probabilityComplementary eventsCoin experimentsTwo-coin experiment

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.

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All 25 chapters — ICSE Class 7 Mathematics Syllabus

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