2n boys are randomly divided into two subgroups containing n boys each. The probability…
Mathematics · JEE Main · NTA Exams — Statistics and Probability
2n boys are randomly divided into two subgroups containing n boys each. The probability that the two tallest boys are in different groups is
- \(\frac{n}{2 n-1}\)
- \(\frac{n-1}{2 n-1}\)
- \(\frac{2 n-1}{4 n^{2}}\)
- none of these
Answer
(A) n 2 n-1
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The mean age of a combined group of men and women is 25 yrs. If the mean age of the group of men is 26 and…
- Let x 1 , x 2 ......, x n be n observations. Let _ i = x _ i + k for i = 1, 2,.........,n, where l and k are…
- For a biased die the probabilities for the diffferent faces to turn up are given below : Faces : 1 2 3 4 5 6…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT …
- A problem in mathematics is given to three student A, B, C and their respective probability of…
- A & B are two independent witnesses (i.e. no collusion between them). The probability that A will speak the…
- The median of a set of 9 distinct observations is 20.5. If each of the largest 4 observations of the set is…
- A fair die is tossed eight times. The probability that a third six is observed on the eight throw, is
More Statistics and Probability questions · Browse all practice questions