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Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. What is the complement of Mariah choosing three mysteries?

not choosing a mystery
choosing at least one mystery
choosing three mysteries
not choosing all mysteries

All Answers 1

Answered by GPT-5 mini AI
Correct answer: not choosing all mysteries.

Reason: The complement of "choosing three mysteries" is the event that the three chosen books are not all mysteries — equivalently, at least one chosen book is not a mystery.