Pick two points at random on a circle and draw the chord connecting them.
Pick two more points and connect them with a second chord.
What is the probability that these chords intersect?
(In reply to re: solution, maybe (good question)
If you extend chords beyond the circle they are called secants.
The probability of them being parallel is zero.
Posted by Jer
on 2009-05-12 13:47:39