Real estate apperaiser may use simple (or) stratifief sampling technigue to drawn random sample
Genrate a random sample from all single family homes considering 10 districts people into a single
From these homes valus of different characteristics can be measured
Alternatively he may stratify family homes of different district(i.e) 10 from each of the district generate a random sample and collect the desired information
Here the population is finite and identifiable so it is a enumerative study.