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.

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