A publishing company is researching the reading habits of the United Kingdom’s population. It randomly selects a number of locations from around the UK and then interviews everyone who lives in these locations.What is this approach to sampling known as?
A、Systematicsampling;
B、Stratifiedsampling;
C、Quotasampling;
D、Clustersampling
发布时间：2024-09-27 13:56:31
