A Urn contains ‘m’ white and ‘n’ black balls. Balls are drawn one by one till all the…

Mathematics · JEE Main · NTA Exams — Statistics and Probability

1. \(\frac{m}{m+n}\)
2. \(\frac{n(m+n-1)}{(m+n)(m+n-1)}\)
3. \(\frac{m(m-1)}{(m+n)(m+n-1)}\)
4. \(\frac{m n}{(m+n)(m+n-1)}\)

Answer

(A) m m+n

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