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Probability Distributions

CBSE · Class 12 · Applied Mathematics

Complete topic list for Probability Distributions in CBSE Class 12 Applied Mathematics. Key concepts, sub-topics, and what to focus on for board exams.

49 questions24 flashcards5 concepts

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4 Topics · CBSE Class 12 Applied Mathematics

Topics in Probability Distributions

1

Random Variables and Probability Distributions

  • A random variable is a real-valued function whose domain is the sample space of a random experiment
  • Discrete random variables take distinct, countable values (like number of heads in coin tosses)
  • Continuous random variables can take any value within a given range (like height, weight)
2

Mathematical Expectation and Variance

  • Mathematical expectation E(X) is the weighted average of all possible values
  • E(X) represents the theoretical mean of the random variable
  • Variance measures the spread of random variable values around the mean
3

Binomial Distribution

  • Applies to Bernoulli trials with exactly two outcomes: success and failure
  • Requires fixed number of independent trials with constant probability
  • Probability of r successes in n trials follows binomial formula
4

Poisson Distribution

  • Models rare events occurring over fixed intervals of time/space
  • Events occur independently at constant average rate
  • Parameter λ represents both mean and variance

Key Concepts

A random variable is a realA probability distribution describes how probabilitiesThe expected value E(X) ofVariance measures the spread ofA discrete probability distribution for

Frequently Asked Questions

What are the important topics in Probability Distributions for CBSE Class 12 Applied Mathematics?
Probability Distributions covers several key topics that are frequently asked in CBSE Class 12 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 Distributions — CBSE Class 12 Applied Mathematics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision 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 10 chapters — CBSE Class 12 Applied Mathematics Syllabus

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