A digit in the ten thousands place will always be greater than the one in the thousands place. Even though the number in the ten thousands place is smaller it will still be greater because 10,000>1,000 right? For example,
In cluster sampling method, each member of a population is assigned to one and only one group.This means clusters are formed through probability method usually a simple random sampling.The participants in the clusters are the only one to be surveyed.
In this example, simple random sampling is used to identify 12 home rooms(cluster) where a group of 20 students (participants) in each room is given the survey.