The post I replied to said: > One incident in two years, out of a population of tens of millions I'm pointing out that overall population is not relevant. Th

The post I replied to said: > One incident in two years, out of a population of tens of millions I'm pointing out that overall population is not relevant. The "fraction of a fraction" is the ratio of children who ride the bus alone, and get abducted. It seems that is relevant information when trying to contextualize the danger in allowing a child to ride a bus alone.