document.write( "Question 1191791: To determine customer opinion of their check-in service, a major airline randomly selects 150 flights during a certain week, and then surveys every passenger on each of the 150 flights. What type of sampling is this? \n" ); document.write( "
Algebra.Com's Answer #823646 by Boreal(15235)\"\" \"About 
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This is a cluster sample, where all the people in a randomly selected item from a large number of items are sampled. \n" ); document.write( "
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