Question

what is the sum of probability of all events of a trial.....
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Answer 1

★ A sample space, Ω (or S), which is the set of all possible outcomes. A set of events , where eachevent is a set containing zero or more outcomes. The assignment of probabilities to the events—that is, a function P mapping from events toprobabilities.

Answer 2

The sum of all the Event's Probabilities occurring in an Experiment is 1 .

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