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Probability — Revision Notes

ICSE · Class 8 · Mathematics

Probability revision notes for ICSE Class 8 Mathematics: 3 topics in quick points. Part of the ICSE Class 8 Mathematics syllabus.

84 questions25 flashcards13 formulas & key relations5 concepts

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Key Topics to Revise

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1. Basic Ideas in Probability

  • An experiment is an action which results in some well defined outcomes.
  • A random experiment has more than one possible outcome, and it is not possible to predict any outcome in advance.
  • In this chapter, the word experiment means random experiment.
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2. Outcomes of Common Random Experiments

  • A coin tossed once has 2 outcomes: H and T.
  • A coin tossed two times or two coins tossed together once has 4 outcomes: HH, HT, TH, TT.
  • A coin tossed three times has 8 possible outcomes.
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3. Probability Formula and Worked Examples

  • Probability is the ratio of favourable outcomes to total outcomes.
  • The numerator is the number of outcomes that support the event.
  • The denominator is the total number of possible outcomes.

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Full Notes

Key Concepts

An experiment is an actionA random experiment has more thanA trial is each single performanceIf all outcomes of an experimentEach outcome of an experiment

Frequently Asked Questions

What are the important topics in Probability for ICSE Class 8 Mathematics?
Key topics in Probability include Basic Ideas in Probability, Outcomes of Common Random Experiments, Probability Formula and Worked Examples. Study these first, then practise questions on each for Class 8 exams.
How should I revise Probability for Class 8 exams?
Learn the core ideas first, then work through the 84 practice questions on Probability. 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 Probability

All ICSE Class 8 Mathematics Revision Notes

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