Example 4. A party of 15 persons sit at a round table. Findthe odds ag – InterviewSolution

1.	Example 4. A party of 15 persons sit at a round table. Findthe odds against two specified individuals sitting next to eachother.
Answer» n(E)=(n-2)!2!n(s)=(n-1)! as circular arrngmntnwP(E)=(n-2)!2!/(n-1)!=2/(n-1)P(E)'=(1-(2/n-1))=(n-3)/(n-1)now ATQodd against:P(E)'/P(E)=(n-3)/2=(n-3)/2put n =15hence15-3/2=12/2=6 chances

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