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For an event F with P(F) > 0 in sample space S, P(S|F) equals what?
A1
B0
CP(F)
D1/2
Answer & Solution
Correct answer: A. 1
P(S|F) = P(S ∩ F)/P(F) = P(F)/P(F), which is 1, because F lies entirely inside S.
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