I toss two coins and look at the outcome. I then tell you that at least one of the coins is showing up as "tails". What is the chance that the other one is showing "tails" as well?

(from techInterview.org)

(In reply to re(2): Question On The Solution by Charlie)

Surely a computer program would make all arguments that it is 1/3 completely without reason- it can't be an argument without the evidence... Plus, computer programs (programmes?) have a tendency to be correct. (Unless they're made incorrectly, and I don't see anything wrong with the way you've done it.)

Posted by Matt on 2007-10-24 12:41:58