Donald Burrill wrote:
>
> "The story is about six students who ... The instructor ... tells them
> to report the next day for an exam with only one question. If they all
> get it right they all pass. They were seated at corners of the room and
> could not communicate."
>
> Must have been an interesting room, with six corners :)
>
> "The one question was, "Which tire?" I remember that the likelihood of
> all four pickng the same tire was quite small, but I forgot how to
> calculate it explicitly."
>
> Assuming an ordinary vehicle with 4 tires, and that the students'
> responses are independent, (1/4)^6 = 1/4096.
No, (1/4)^5. [See my first posting in which I mistakenly solved
for four students... but the principle that one student's guess is
"free" still holds.]
-Robert Dawson
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