Do provide me with the feedback by clicking and filling up the form. Probability is all about chance - the chance or likelihood that something has of happening. When we talk about probability we are talking about how likely something is to happen. Probability is usually measured as a fraction or a percentage. A probability of 1 means that the event will definitely happen.
Probability is a concept governed by three basic axioms.
Before we can begin with the axioms, we need to introduce some concepts related to probability. Consider an experiment whose outcome is not known a priori. The set of all possible outcomes S is known as the sample space of the experiment. An event is defined as a set of possible outcomes of the experiment. If two events cannot occur simultaneously, then they are called mutually exclusive.