system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All of the following are random sampling methods except
assistant
The correct answer is  Quota Sampling

Population is first segmented into mutually exclusive sub-groups (quotas), just as in stratified sampling; then judgment is used to select the units from each group non-randomly
Is a type of convenience sampling.