>And, most people, when you tell them the right answer, have problems gettiong it because they can't distinguish between two people having a particular birthday and finding two people with the same birthday.
That's right. What the question actually asks is for the probability of
any two people in the group sharing their birthdate on
any day of the year. That's the reason the probability is higher than most people expect.
In this region of the world, and probably in others, too, average people have trouble with the very concept of probabilities, too.
Reminds me of a statement I heard somewhere, which goes something like this: "70% of the world's population can't handle percentages; the other half doesn't care."
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)