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Chapter 25 of 27
Syllabus

ProbabilitySyllabus

IISER Aptitude Test · Mathematics

Topics covered in Probability for IISER Aptitude Test Mathematics. Understand the syllabus structure and key areas to focus on.

Probability — Syllabus & Topics

Topics covered in Probability for IISER Aptitude Test Mathematics.

Topics in Probability

1

13.2 Conditional Probability

  • Conditional probability measures the likelihood of an event occurring given that another event has already occurred
  • Formula: P(A|B) = P(A∩B)/P(B), where P(B) ≠ 0
  • Range: 0 ≤ P(A|B) ≤ 1 for all events A and B
2

13.3 Multiplication Theorem

  • Used to find probability of intersection of two or more events
  • For two events: P(A∩B) = P(A) × P(B|A) = P(B) × P(A|B)
  • For three events: P(A∩B∩C) = P(A) × P(B|A) × P(C|A∩B)
3

13.4 Independent Events

  • Two events are independent if occurrence of one doesn't affect the probability of the other
  • For independent events: P(A|B) = P(A) and P(B|A) = P(B)
  • Independence condition: P(A∩B) = P(A) × P(B)
4

13.5 Bayes' Theorem and Total Probability

  • Partition of sample space: events that are mutually exclusive, exhaustive, and have non-zero probabilities
  • Total Probability Theorem: P(A) = Σ P(Eᵢ) × P(A|Eᵢ) for partition {E₁, E₂, ..., Eₙ}
  • Bayes' Theorem: P(Eᵢ|A) = [P(Eᵢ) × P(A|Eᵢ)] / [Σ P(Eⱼ) × P(A|Eⱼ)]

Key Concepts

The probability of event A occurringUsed to find probability of intersectionTwo events are independent if occurrenceUsed to find probability of causesA random variable assigns numerical values

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Frequently Asked Questions

What topics are covered in Probability for IISER Aptitude Test?

Probability is an important chapter in IISER Aptitude Test Mathematics. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: 13.2 Conditional Probability, 13.3 Multiplication Theorem, 13.4 Independent Events, 13.5 Bayes' Theorem and Total Probability.

Probability is a frequently tested chapter in IISER Aptitude Test Mathematics. Questions from this chapter appear regularly in previous year papers. There are 55 practice questions available for this chapter.

Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.