What is the probability that a randomly drawn chord will be longer than the radius of the circle?
(In reply to answer a ? with a ?
I think DJ was even cleverer (is that a word?)... and that he asked the problem KNOWING that to answer it, one must make an assumption about how the random number is determined.
(I think so, because I submitted a problem doing exactly that :-)... hopefully, it will come get posted in the next year or so.... :-)