The sum of the probabilities of all the outcomes of an experiment must be one.

Name: The sum of the probabilities of all the outcomes of an experiment must be one.
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Question

Quizplus · Accepted Answer

The sum of the probabilities of all possible outcomes of an experiment must equal one because probability is a measure of the certainty that an event will occur, and all possible outcomes together represent the certainty that some outcome will occur.

The Sum of the Probabilities of All the Outcomes of an Experiment