Samantha and Luis are attempting to determine how many library books each seventh grade student checks out at the same time. Samantha surveys every other seventh grade student leaving the library. She samples a total of 40 of the 200 seventh graders. Luis samples 30 of the 200 seventh grade students at random in the school cafeteria. Whose sample is the most random?
Luis because his sample is taken from the population of all seventh graders
Luis because he samples fewer students
Samantha because she samples more students
Samantha because her sample is taken from the population of students who use the library
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