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The empty set, taken as an event, is called the:
AImpossible event
BSure event only
CCompound event
DComplement event
Answer & Solution
Correct answer: A. Impossible event
1. Every subset of the sample space describes an event.
2. The empty set is a subset holding no outcome at all.
3. So it describes an impossible event.
_Source: NCERT Class 11 Mathematics, Chapter 16, Probability._
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