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PROBABILITY — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsPROBABILITY1 Mark
Question
Define: Impossible Event:
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Answer

The special subset $∅$ or $\{\ \}$ of the sample space of a random experiment is called an impossible event.
Impossible event is an event which never occurs.
It is denoted by $∅$ or $\{\ \}.$

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