A coin is tossed three times, consider the following \( \mathrm{P} ...

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A coin is tossed three times, consider the following
\( \mathrm{P} \) events

W
A : 'no head appears'
B : 'exactly one head appears'
C: 'at least two heads appear 'and
S: Sample space of experiment then
(1) \( S=A \cup B \cup C \)
(2) \( S=A \cup B \cap C \)
(3) \( S=A \cap B \cap C \)
(4) None of these
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