Question

Systematic Sample Simple Random Sample Convenience Sample Multi-Stage Sample Stratified Sample Cluster Sample 1. Among your friends who took the exam, select 4 of them completely at random.    Obtain an alphabetical list of all students who took the exam. Starting with the 6th student on the list, survey every 14th student.    Randomly choose 4 of the 14 sections, and survey every student from those 4 sections.    Choose a set of 42 students completely at random.    Obtain an alphabetical list of all students who took the exam. Choose 6 letters at random, and survey every student whose last name begins with one of the chosen letters.