Download the latest CBSE Class 9 Mathematics Probability Notes Set A in PDF format. These Class 9 Mathematics revision notes are carefully designed by expert teachers to align with the 2025-26 syllabus. These notes are great daily learning and last minute exam preparation and they simplify complex topics and highlight important definitions for Class 9 students.
Chapter-wise Revision Notes for Class 9 Mathematics Chapter 15 Probability
To secure a higher rank, students should use these Class 9 Mathematics Chapter 15 Probability notes for quick learning of important concepts. These exam-oriented summaries focus on difficult topics and high-weightage sections helpful in school tests and final examinations.
Chapter 15 Probability Revision Notes for Class 9 Mathematics
Chapter 15
Probability
Chapter Notes
Top Definitions
1. Probability is a quantitative measure of certainty.
2. Any activity associated to certain outcome is called an experiment.
e.g. (i) tossing a coin (ii) throwing a dice (ii) selecting a card.
3. A trial is an action which will result in one and several outcomes.
4. An event for an experiment is the collection of some outcomes of the experiment. E.g (i) Getting a head on tossing a coin (ii) getting a face card when a card is drawn from a pack of 52 cards.
Top Concepts
1. Probability of an event lies between 0 and 1.
2. Probability can never be negative.
3. A pack of playing cards consist of 52 cards which are divided into 4 suits of 13 cards each. Each suit consists of one ace, one king, one queen, one jack and 9 other cards numbered from 2 to 10. Four suits named spades, hearts, diamonds and clubs.
4. King, queen and jack are face cards.
5. The two possible outcomes of tossing a coin are head and tail.
6. The sum of the probabilities of all elementary events of an experiment is 1.
Top Formulae
1. The empirical (experimental) probability of an event E denoted as P(E) is given by:
P(E) =Number of trialin which the event happenend /TotalNumber of Outcomes
Please click the link below to download pdf file for CBSE Class 9 Concepts for Probability.
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CBSE Class 9 Mathematics Chapter 15 Probability Notes
We hope you liked the above notes for topic Chapter 15 Probability which has been designed as per the latest syllabus for Class 9 Mathematics released by CBSE. Students of Class 9 should download and practice the above notes for Class 9 Mathematics regularly. All revision notes have been designed for Mathematics by referring to the most important topics which the students should learn to get better marks in examinations. Our team of expert teachers have referred to the NCERT book for Class 9 Mathematics to design the Mathematics Class 9 notes. After reading the notes which have been developed as per the latest books also refer to the NCERT solutions for Class 9 Mathematics provided by our teachers. We have also provided a lot of MCQ questions for Class 9 Mathematics in the notes so that you can learn the concepts and also solve questions relating to the topics. We have also provided a lot of Worksheets for Class 9 Mathematics which you can use to further make yourself stronger in Mathematics.
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