 # Maths Revision Notes for Class 12 Chapter 13 Probability.

The 13th chapter in the CBSE class 12 Maths revision notes is titled as Probability. Students can refer to these revision notes for the chapter of Probability while revising for their main exams.

## CBSE Notes Class 12 Maths Chapter 13 Probability

Simply put, Probability can be defined as the likeliness or extent to which a particular event might take place. The extent of probability is usually grouped between 0 and 1, where 0 indicates the impossibility of an event, while 1 expresses the certainty of an event. Some of the other concepts that students will learn in this chapter are:

• Basic definitions of a random experiment, sample-space, experiment or trial and event.
• Besides these definitions, the classification of events is also described along with the difference between a simple event and a compound event.
• There are other cases of events which might also occur such as a mutually exclusive event, independent events and exhaustive events.

You may also want to read:

## Frequently asked Questions on CBSE Class 12 Maths Notes Chapter 13: Probability

### What is ‘Conditional probability’?

Conditional probability is defined as the likelihood of an event or outcome occurring, based on the occurrence of a previous event or outcome.

### What does ‘statistics’ mean?

The science of collecting and studying data represented in the form ofT numbers is called as ‘Statistics’.

### What is ‘Bay’s theorem’?

Bay’s Theorem is a mathematical formula for determining conditional probability.