Calculus and Above

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The probability of the next number not being unique from my random number generator is k/n, where k is how many in the list so far and n is how many possible numbers.

Ok, so how do I work out the probability of say, one of the next 3, or more generally, one of the next x, numbers, is going to be a repeat?

Many thanks!

The probability of the next number not being unique from my random number generator is k/n, where k is how many in the list so far and n is how many possible numbers.

Ok, so how do I work out the probability of say, one of the next 3, or more generally, one of the next x, numbers, is going to be a repeat?

Many thanks!

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