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OpenStudy (anonymous):
Rafael is taking a test that contains a section of 12 true-false questions. How many of the possible groups of answers to these questions have exactly 8 correct answers of false? a.425 b.495 c.500 d.515
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OpenStudy (anonymous):
@Mertsj can you please help me?
OpenStudy (anonymous):
It's a combination. 12 choose 8
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