On Sun, 19 Jan 2003, Arthur J. Kendall wrote:
> Nice class exercise problem:
> If I have N students, each assigned a random number from 0001 to
> 9999 like the last 4 digits of an SSN, what is the probability that
> two students will have the same last 4 digits?
>
> Art
If, as I gather is the case, the last 4 digits are assigned within
groups in chronological sequence from 0001 up, the probability will be
higher than one would calculate assuming the four digits to be uniformly
and independently distributed on {0, ..., 9}: which would, I suppose,
be the usual simplifying assumption.
-- Don.
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Donald F. Burrill [EMAIL PROTECTED]
56 Sebbins Pond Drive, Bedford, NH 03110 (603) 626-0816
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