Win_odd Dhamnekar
Junior Member
- Joined
- Aug 14, 2018
- Messages
- 207
In how many ways can n identical balls be distributed into r urns so that the ith urn contains atleast \(\displaystyle m_i\) balls, for each i = 1,. . ., r ? Assume that \(\displaystyle n \geq \displaystyle\sum_{i=1}^{r} m_i\)
My answer: \(\displaystyle \displaystyle\sum_{i=1}^r \binom{n+r -1}{r-1}, n \geq r \)
Is this answer correct?
My answer: \(\displaystyle \displaystyle\sum_{i=1}^r \binom{n+r -1}{r-1}, n \geq r \)
Is this answer correct?