Probability is a branch of mathematics that deals with the likelihood of an event occurring. It is expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.
The basic formula for calculating the probability of an event E is:
P(E)=TotalnumberofpossibleoutcomesNumberoffavorableoutcomes
An outcome is a single result of an experiment, and the sample space is the set of all possible outcomes. An event is a specific collection of outcomes.
For example, if you flip a fair coin, there are two possible outcomes: heads or tails. The probability of getting heads is 21 because there is one favorable outcome (heads) out of two total possible outcomes.
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