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Mathematics, 07.12.2020 14:00 chevysilveradofixit

An airline is interested in measuring the customer satisfaction of its passengers in all of its domestic flights on a certain day. The data analysis team took all 22 domestic flights of that day that took off from a certain airport. They randomly selected 25 passengers from each flight to form a sample of 550 passengers. What sampling technique did the data analysis team use?
Stratified sampling

Simple random sampling

Quota sampling

Systematic sampling

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