ECONOMICS

Detailed explanation-1: -What is the basic process in probability proportionate to size sampling? Give bigger clusters a greater chance of being picked but then take the same number of elements per cluster.

Detailed explanation-2: -A disproportionate sample ensures that you have an adequate number for analyzing even the smallest groups in a population. Using this method, the researchers can evenly divide the total sample size between the subgroups or use different proportions that make sense for their study.

Detailed explanation-3: -Proportional stratified random sampling involves taking random samples from stratified groups, in proportion to the population. In disproportionate sampling, the strata are not proportional to the occurrence of the population.

Detailed explanation-4: -Proportional sampling is the method of picking an element proportional to its weight, i.e., the higher the weight of the object, the better are its chances of being selected.