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Probability — Revision Notes

CBSE · Class 11 · Applied Mathematics

Probability revision notes for CBSE Class 11 Applied Mathematics: 4 topics in quick points. Part of the CBSE Class 11 Applied Mathematics syllabus.

45 questions24 flashcards2 formulas & key relations5 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?
Key topics in Probability include Random Experiments and Sample Space, Events and Types of Events, Conditional Probability, Theorem of Total Probability. Study these first, then practise questions on each for Class 11 exams.
How should I revise Probability for Class 11 exams?
Learn the core ideas first, then work through the 45 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 CBSE Class 11 Applied Mathematics Revision Notes

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