For a certain random experiment with sample space S, let A be an event and A' be the complement of A. The set A∪A′=
A
S'
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B
S
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C
ϕ
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Solution
The correct option is B S Sample space S is the set of all possible outcomes of a random experiment. For an event A, its complement A' will consist of all the outcomes in S that are not present in A. Therefore, A∪A′=S