NCERT Solutions for Class 9 Maths Chapter 15 Probability in Hindi Medium as well as English Medium PDF **NCERT Solutions** to free download. Download **NCERT Books** for CBSE Board and UP Board for the new academic session 2018-2019 for the CBSE Exams March 2019. All solutions are revised as per Latest **CBSE Curriculum 2018-19** and updated, removing errors and simplifying according to suggestions received by the students.

## NCERT Solutions for Class 9 Maths Chapter 15

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### Class 9 Maths Chapter 15 Probability Solutions

#### Hindi Medium & English Medium Solutions

- Class 9 Maths Chapter 15 Exercise 15.1 Solutions
- Study Online Exercise 15.1
**Download Exercise 15.1****Download प्रश्नावली 15.1**

**NCERT Books for Class 9 All Subjects****NCERT Exemplar Problems Solutions****Study Material for 2018-2019 – English Medium****Study Material for 2018-2019 – Hindi Medium**

##### Important Terms & Definitions on Probability

*Experiment*: An operation which can produce some well-defined outcomes, is called an experiment.*Random Experiment*: An experiment which, when repeated under identical conditions, do not produce the same outcomes every time, but if the outcomes produced is one out of the several possibilities, is known as a random experiment.*Event*: A possible outcome or combination of outcomes is called an event.*Sure Event*: If probability of an event is 1, then the event is called certain event or sure event.*Impossible Event*: If probability of an event is 0, then event is called an impossible event.

- The probability of an event is given by P(E) = [Number of trials in which E has happened]/[Total number of trials].
- The probability of happening of an event always lies from 0 to 1.
- The sum of all the possibilities of all possible outcomes of an experiment is 1.
- Experimental probability of an event can never be negative.

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