There are 125,000 people on earth a few centuries after the initial Adam and Eve. 50% are male, 50% female. 1 in every 500 people is called Adam and 1 in every 500 people is called Eve (no males are called Eve and no females are called Adam).
If all the people are put randomly into male and female pairs, what is the most likely number of Adam and Eve couples that will occur?
Very hard without a method!