I have a bag of $100$ marbles. I draw a marble at random and put it back in the bag. I do this a total of $50$ times. What is the probability that there is at least one marble which I picked at least $5$ times? Generally, for $N$ random selections from a pool of constant size $M$, what is the probability that at least one item in the pool was selected at least $X$ ($X < N$) times?
2025-01-13 05:38:09.1736746689
Probability of $X$ collisions on random selections from pool
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