The sum of the probabilities of all the elementary events of an experiment is __.

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-1

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greater than 1

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Solution

The correct option is A 1
An event having only one outcome of the experiment is called an elementary event.
If $E_{1}, E_{2}, E_{3}, \dots, E_{n}$ are elementary events, then $E_{1} + E_{2} + \dots + E_{n} = 1$ .

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Sum of probabilities of all the elementary events of an experiment is always 1.

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