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Probability

CBSE · Class 11 · Applied Mathematics

Quick revision notes for Probability — CBSE Class 11 Applied Mathematics. Key concepts, formulas, and definitions for last-minute revision.

45 questions24 flashcards5 concepts

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Key Topics to Revise

1

Random Experiments and Sample Space

  • A random experiment has multiple possible outcomes that cannot be predicted in advance
  • Sample space (S) is the set of all possible outcomes of a random experiment
  • An outcome is a single result of a random experiment
2

Events and Types of Events

  • An event is a subset of the sample space
  • Empty set (∅) represents impossible event with probability 0
  • Sample space (S) represents sure event with probability 1
3

Conditional Probability

  • Conditional probability measures likelihood of an event given another event has occurred
  • Written as P(A|B) - 'probability of A given B'
  • The condition reduces the sample space to only outcomes where B occurs
4

Theorem of Total Probability

  • Expresses total probability of an outcome that can occur through several distinct paths
  • Requires a partition of sample space - mutually exclusive and exhaustive events
  • Each path contributes to total probability based on its own probability and conditional probability

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Full Notes

Key Concepts

A random experiment is a processAn event is a subsetThe probability of an event EIf events A₁For events A₁

Frequently Asked Questions

What are the important topics in Probability for CBSE Class 11 Applied Mathematics?
Probability covers several key topics that are frequently asked in CBSE Class 11 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 — CBSE Class 11 Applied Mathematics?
Understand the core concepts first, then work through the 45 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 12 chapters — CBSE Class 11 Applied Mathematics Revision Notes

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