Statistical outcomes require statistical games
Let’s say 1% of kids are born with allergies. The statistic is useful for a public policy maker, someone who is setting up food menus in schools or regulating restaurants. However, the statistic is useless for you as a parent. Unless you are planning to have around 10+ kids, you are never going to experience the statistical outcome. If you have one child, either the child would have an allergy or he won’t. Statistical outcomes matter only when someone plays a game sufficient times.