Let’s check out your problem:
Marcus and Isabel are playing a game that involves flipping fair coins to see who gets to be the "banker." The exact results determine other aspects of the game, but if both coins land showing the same result (both heads or both tails), then Marcus gets to be the banker. If the coins show different results from each other (one shows heads while the other shows tails), then Isabel gets to be the banker. Is this a fair way to decide who gets to be the banker? Why or why not?