Probabilities are a branch of mathematics that deals with chances.
Probability can be expressed as either a number or a percentage, such as 50%.
An experiment is an activity in which the result cannot be predicted with certainty.
The repetition of an experiment is called a trial.
An outcome is a result of an experiment.
A simple event is an event with only one possible outcome.
The sample space for a given experiment is a set S that contains all possible outcomes of the experiment.
In any experiment for which the sample space is S, the probability of an event occurring is given by the formula: P(A) = number of outcomes of the event over the sample space.
The probability of getting a head when flipping a five peso coin is 50%.
The probability of picking a black card at random from a standard deck of 52 cards is one half.
