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Chapter Summary

Introduction To Probability

NIOS · Class 10 · Maths

Summary of Introduction To Probability for NIOS Class 10 Maths. Key concepts, important points, and chapter overview.

40 questions26 flashcards5 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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Overview

Probability studies situations involving uncertainty. A random experiment has more than one possible outcome, but the exact result cannot be predicted in advance. The chapter builds the basic language of probability: experiment, outcome, event, elementary event, sure event, impossible event, and com

Key Concepts

An experiment with more than one

An experiment with more than one possible outcome whose result cannot be predicted in advance. Tossing a coin, throwing a die, planting seeds, drawing

A possible result of a random

A possible result of a random experiment. For a coin, the outcomes are Head and Tail; for a die, the outcomes are 1, 2, 3, 4, 5, and 6.

One or more outcomes of

One or more outcomes of an experiment constitute an event. For example, 'the die shows an even number' is an event because it includes 2, 4, and 6.

An event having only one outcome

An event having only one outcome of the experiment.

For equally likely outcomes

For equally likely outcomes, probability is found by dividing the number of favourable outcomes by the number of all possible outcomes. The formula is

Learning Objectives

  • Understand the meaning of a random experiment
  • Differentiate between outcomes and events
  • Identify elementary, sure, impossible, and complementary events
  • Use the probability formula for equally likely outcomes
  • Find probabilities in common situations involving coins, dice, cards, and balls

Frequently Asked Questions

What are the important topics in Introduction To Probability for NIOS Class 10 Maths?
Key topics in Introduction To Probability include Probability Concepts Overview, Probability Concepts Overview, Probability Concepts Overview. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Introduction To Probability — NIOS Class 10 Maths?
Understand the core concepts first, then work through the 40 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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