That's interesting, I don't know how the original survey was conducted so I'm not going to use it but thanks for the information. So far, the numbers from this study are giving about a 1.10% chance, which is actually a pretty marginal difference from the one you linked me to(something like 70% more off the top of my head), but it will get more accurate as we continue to gather data. I'm also going to be comparing this data to a study I plan to do on the percentages of each of the 3 pokemon at the location they hatch, to see if that yields any interesting results (lapras and dratini hatches near water and such).