Answer:
Both identify subgroups that need to be studied.
Correct option D
Explanation:
Stratified sample is a sample including each sub category of the target population.
For example, if your target population is Birmingham University students, each sub category would include each University degree; English students, Law students, Psychology students, Engineering students, Mathematics students etc.
Quota sample is a sample including a pre determined % of each sub category of the target population.
For example, if your target population is Birmingham University students, each sub category would have an assigned required %; 10% of English students, 20% of Law students, 5% of Psychology students, 5% of Engineering students and 60% of Mathematics students.
