📒 Definitions (Probability)
Learn and practice Class 9 Mathematics Chapter 13 Definitions on Probability with key concepts and formulas. This page includes free downloadable notes aligned with the Punjab PECTAA 2025 syllabus.
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Information Handling
Chapter 13
Probability
Chapter 13 - Probability Definitions
This chapter covers fundamental probability concepts, including sample space, events, probability calculations, and different types of events in probability theory.
Chapter 13 provides comprehensive definitions and concepts related to probability, helping students understand how to calculate the likelihood of events occurring in various scenarios.
The chapter covers key probability formulas, types of events, deck of cards probability, relative frequency, and expected frequency calculations.
Key Topics Covered
- Definition of probability and its calculation
- Experiments, outcomes, and sample space
- Types of events (certain, impossible, likely, unlikely, equally likely)
- Complement of events and probability range
- Deck of cards and probability calculations
- Relative frequency and expected frequency
Important Formula:
The probability of an event A is calculated as: P(A) = Number of favourable outcomes / Total number of possible outcomes. The range of probability for any event is: 0 ≤ P(A) ≤ 1
Created by Hira Science Academy | Aligned with PECTAA 2025 Syllabus