Which of the following statements is always true for any two events A and B defined on a sample space S?
A) The complement of event A is event B.
B) The intersection of A and B is the set of all basic outcomes in either A or B.
C) If events A and B are mutually exclusive, then A ? B = S.
D) If events A and B are collectively exhaustive, then A ? B = S.
D
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