Question: Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster. To determine customer opinion of their check-in service, American Airlines randomly

Identify which type of sampling is used: random, systematic, convenience, stratified, or

Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster. To determine customer opinion of their check-in service, American Airlines randomly selects 100 flights during a certain week and surveys all passengers on the flights. Which type of sampling is used? OA. Systematic OB. Random OC. Cluster O D. Convenience O E. Stratified

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