A Trial
A trial is the act of doing an experiment in probabilty
An outcome
An outcome is one of the possible results of a trial
Sample Space
The set or list of all possible outcomes in a trial is known as a sample space
An event
An event is the occurrence of one or more desirable ourcomes
A Fair Die
A fair die is a die in which all the numbers are equally likely to occur
Relative Frequency
This is an estimate of the probability
Fairness
If all outcomes are equally likely to occur, then the trial or experiment is considered to be fair or unbiased.