SIMPLE RANDOM - Drawing 50 names from a hat containing all student names in a school., STRATIFIED - Dividing a city into age groups (e.g., 18-25, 26-40, 41+) and then randomly selecting a proportional number of people from each group., CLUSTER - Randomly selecting 10 classrooms from a large school district and surveying all students in those chosen classrooms., SYSTEMATIC - Selecting every 10th customer entering a store for a survey., CONVENIENCE - Surveying people at a shopping mall because they are readily available., PURPOSIVE - Interviewing CEOs of tech startups to understand industry trends., QUOTA - Interviewing 50 males and 50 females in a neighborhood to ensure equal representation of gender., SNOWBALL - Asking a person with a rare disease to recommend other people they know with the same disease for a study.,

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