"One difficulty was that sometimes there were few, or even no, guesses of the oxen’s weight. But that problem was soon overcome. Mathematicians from the University of Chicago developed models from which it was possible to estimate what, if there had actually been many guesses as to the weight of the animal, the average of these guesses would have been. No knowledge of animal husbandry was required, only a powerful computer."
Interesting, non-the-less. '