New posts in Balls In Bins

A combinatorial identity - Hockey Stick generalization

Arranging $n$ balls in $k$ bins so that $m$ consecutive bins are empty

Expected value of $\max\limits_{1\leq i\leq m}X_i-\min\limits_{1\leq i\leq m} X_i$ for balls and bins problem

$n$ balls are thrown randomly into $k$ bins - how many are empty?

If n balls are thrown into k bins, what is the probability that every bin gets at least one ball?