Assume a bingo draw consists of $30$ unique random numbers from $1-75$ inclusive. How many draws $(N)$ would you need to be $90\%$ certain that there exist a subset of draws $K$ such that the $K$ draws have all $75$ numbers covered, and that they are uniformly distributed?
2026-04-07 03:16:59.1775531819
Number of bingo draws to construct sample space without overlap
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