逻辑题求助，感谢！

哪位大侠能帮忙分析一下这道逻辑题，感激不尽！

Jane:        It is cause for alarm that over half of the people in this state reported in a survey that they knew someone who had been a victim of a crime.

Laura:But each person surveyed probably knows a hundred people.If only one person out of one hundred acquaintances had been a victim of a crime,even a pretty theft,they would reply in affirmative.Although a zero crime rate is ideal,it is unrealistic to expect the crime rate to be less one percent.

Laura’s argument relies on the assumption that

正确答案是：

Normally,crime vicitms are not found only in a certain areas of the state among certain isolated groups of people.