How are quota sampling and stratified random sampling similar? a. Both result in nonrepresentative samples. b. Both result in representative samples. c. Both randomly sample subgroups to be studied. d. Both identify subgroups that need to be studied.

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.