There's no source for statistics...
You litterally don't understand the expression "false positive" or what that would mean in a dataset.
The source is math.
60% chance of a false positive, means there is a 40% chance it's accurate, and if you have accurate results, you would be considered "lucky" (the mathematical expression of luck, just like in Bitcoin mining Luck is a factor in who gets the blockreward).
I don't have a source for who invented math ratios and statistics, it's common knowledge to me to understand ratios and percentages.
That is just straight up BS you are telling me there so you say that 3 months of testing of 40 PAX crew and no false positive, is a statistical anomaly called luck you have no source to underline your arguments and still telling me through the grapevine that I am too dumb to understand. Show me the statistics you are talking about!