Mounted police community patrols

This data collection contains two different datasets. The first dates relates to a telephone survey of local residents in six areas that formed the test and control sites in a...本数据集合集包含两组独立数据集。第一组数据集关联于一项针对六个区域本地居民的电话调查，该六个区域为某项研究中的试验与对照站点...