This is wrong, do the maths. (Score 1)

Well ... what a an obvious misuse of statistics. You see, last time I've checked humans beings have 2 parents. Now, there are the cases in favor in witch both or just one of the parents do have a profession in accordance with the gender of their child. But only one case against (both parents have a profession that is not in accordance with the gender of the child). Seems obvious why this numbers appeared (66%), they have got nothing strange with them. What a fantastic piece of crap in the form of a research paper.