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Definitions by unanimous hedgehog

probability

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.
dude1:hey you know if it would rain today
dude2:the probability for that is low but not impossible take an umbrella if you want