It might make sense if there were several groups of people who independently counted the equines in Mongolia. 9 of the 10 groups did not encounter any Zebras, but the 10th did. What Dr. Yagami is suspecting is that the 10th group did not actually count equines in Mongolia but got off track and counted somewhere else. An alternative explanation would be that they did in fact count in Mongolia but since they were much more eager than the other groups they discovered the few Zebras in Mongolia which the other groups didn’t. So what Dr. Yagami is trying to prove is that the 8 Zebras are too much to be a statistical fluke that the other groups just didn’t get and it is more likely that the 10th group did in fact not count in Mongolia. Although I’m currently too drunk to figure out whether that is actually supported by the narrative.
It might make sense if there were several groups of people who independently counted the equines in Mongolia. 9 of the 10 groups did not encounter any Zebras, but the 10th did. What Dr. Yagami is suspecting is that the 10th group did not actually count equines in Mongolia but got off track and counted somewhere else. An alternative explanation would be that they did in fact count in Mongolia but since they were much more eager than the other groups they discovered the few Zebras in Mongolia which the other groups didn’t. So what Dr. Yagami is trying to prove is that the 8 Zebras are too much to be a statistical fluke that the other groups just didn’t get and it is more likely that the 10th group did in fact not count in Mongolia. Although I’m currently too drunk to figure out whether that is actually supported by the narrative.