9 persons are seated around a round table. What is the probability that two particular persons sit together?
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Q:
9 persons are seated around a round table. What is the probability that two particular persons sit together?
- 1$$ {1\over 4}$$true
- 2$$ {2\over 5}$$false
- 3$$ {1\over 3}$$false
- 4$$ {3\over 4}$$false
- 5$$ {2\over 3}$$false
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