Mathematics · Probability
n (≥ 3) persons are sitting in a row. Two of them are selected at random. The probability that they are not sitting together is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11
- 21n
- 3n - 2n✓
- 4n - 1n
Correct answer
n - 2n
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