How do you get ${X_i}+{X_j}{\sim}Binom(m,{p_i}+{p_j}) $
137108
Finding a distribution from the sum of two random variables in a joint trinomial distribution
148949
Find the value of $\sum_{k=1}^{n} k \binom {n} {k}$
105416
How can I find an inverse to the Binet formula?
125712
Working with binomial coefficient $\sum_{k=0}^n (-1)^k \binom nk=0$
133420
Computing the binomial series: $\binom{n}{2}\cdot2^2+\binom{n}{4}\cdot2^4+\binom{n}{6}\cdot2^6+\cdots+ \binom{n}{n}\cdot2^n$
17638
Sum with binomial coefficients: $\sum_{k=0}^{n}{2n\choose 2k}$
107021
Finding a combinatorial argument for an interesting identity: $\sum_k \binom nk \binom{m+k}n = \sum_i \binom ni \binom mi 2^i$
94189
Calculate the limit including binomial coefficients
9046
Prove that $\sum_{k=0}^{m}\frac{\binom{m}{k}}{\binom{n}{k}}=\frac{n+1}{n+1-m}$
84775
How to evaluate $\det (1+x_iy_j)_{n\times n}$?
112827
Find the sum of the binomial coefficients
126214
Multiplying Binomial Terms
101573
Subtracting even and odd binomial coefficients?
87505
binomial coefficient equal to sum
116722
Simplifying $\big(\sum_{i=0}^n\binom{k}{i}\binom{M-k}{n-i}\frac{k-i}{M-n}\big)/{\binom{M}{n}}$
2687
How do I compute the discrete valuation of the sum of two elements
58240
Find the expected value of $\frac{1}{X+1}$ where $X$ is binomial