# Class 10 Maths for Probability of Chapter 15 Revision Notes

## CBSE Class 10 Maths Chapter 15 â€“ Probability â€“ Free PDF Download

Free PDF download of Class 10 Maths Chapter 15 â€“ Probability Revision Notes & Short Key-notes prepared by expert Mathematics teachers from latest edition of CBSE(NCERT) books.

### CBSE Class 10 Maths Revision Notes Chapter 15 Probability

(i) Probability
(ii) Miscellaneous Questions

1. The Theoretical probability of the occurence of an event E written as P(E) is P(E)=
2. Experiment: An activity which ends in some well defined outcomes is called an experiment.
3. Trial: Performing an experiment once is called a trial.
4. Event: The possible outcomes of a trial is called an event.
5. Sure event: An event whose occurence is certain is called a sure event.
6. The sum of the probability of all the elementary events of an experiment is 1.
7. The probability of a sure event is 1 and probability of an impossible event is 0.
8. If E is an event, in general, it is true thatÂ  Â  Â
9. From the definition of the probability, the numerator is always less than or equal to the denominator thereforeÂ  .