There are \(n\) persons sitting in a row. Two of them are select at random, the probability that the two selected persons are not together is
Answer & explanation
Correct answer: option 4
Required probability \(=\frac{^{n}C_{2}-(n-1)}{^{n}C_{2}}\)
There are \(n\) persons sitting in a row. Two of them are select at random, the probability that the two selected persons are not together is
Correct answer: option 4
Required probability \(=\frac{^{n}C_{2}-(n-1)}{^{n}C_{2}}\)