The SOCK MATHEMATICAL CONUNDRUM:
Given a single, lone sock, the probability of it being a matching sock is 100%. However, the probability of it being a non-matching sock is, in fact, 0%.
This is because, in the absence of any other socks, the lone sock is, by definition, a matching sock. It's just math.
Learn more about how socks are like people in the context of probability.
Or, if you will, how socks are like pizza.