The devil has two fair coins with one side Heads; the other, Tails. He tosses both of them, has a look, and tells you:
“At least one of the coins is Tails”
He then asks you if you’d like to bet if both of the coins are Tails.
What is the most likely?
- Both tails?
- One is heads?
- Can’t tell?
The solution can be found on this post: Challenge #3 – The Devil’s Tail – Solution.