Judges rule on people's intent based on evidence. It is up to the lawyer presenting the statistics to interpret(with testimony from qualified professionals) the

Judges rule on people's intent based on evidence. It is up to the lawyer presenting the statistics to interpret(with testimony from qualified professionals) these stats before the judge in a way that proves their argument. This applies to medicine,technology and many other fields as well. Judges don't need to know medicne to rule on a malpractice lawsuit either.