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Syllabus

Introduction To Probability — Syllabus

NIOS · Class 10 · Maths

What Introduction To Probability covers in NIOS Class 10 Maths: 4 topics, for the 2026-27 session. Part of the NIOS Class 10 Maths syllabus.

40 questions26 flashcards4 formulas & key relations5 concepts

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An illustration showing various real-life scenarios where probability concepts like 'may', 'likely', 'unlikely', 'chances', 'doubt' are used, demonstrating uncertainty.
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4 Topics · NIOS Class 10 Maths · 2026-27

Topics in Introduction To Probability

1

1. Basic Ideas in Probability

  • Statements like "It may rain today" show uncertainty.
  • Probability is used for situations where the result is not certain.
  • The theory began in the 16th century and developed from games of chance.
2

2. Event, Elementary Event, and Probability Formula

  • One or more outcomes constitute an event.
  • An event with only one outcome is an elementary event.
  • The die shows an even number is an event because it includes 2, 4, and 6.
3

3. Sure Events, Impossible Events, and Complementary Events

  • A sure event is an event that is sure to occur.
  • The probability of a sure event is 1.
  • An impossible event cannot occur.
4

4. Standard Worked Examples

  • A single coin toss gives Head with probability 1/2 and Tail with probability 1/2.
  • A single die throw gives 3 with probability 1/6.
  • A number other than 3 on a die has probability 5/6.

Key Concepts

Central concept: Probability as the study of random experiments, outcomes, and event likelihood

Random experimentOutcomeEventElementary eventProbability of an eventEqually likely outcomesSure eventImpossible event

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Frequently Asked Questions

What are the important topics in Introduction To Probability for NIOS Class 10 Maths?
Key topics in Introduction To Probability include Basic Ideas in Probability, Event, Elementary Event, and Probability Formula, Sure Events, Impossible Events, and Complementary Events, Standard Worked Examples. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How should I revise Introduction To Probability for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 40 practice questions on Introduction To 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.

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