Kari plans to sample 20 people of a population that contains 100 students. She wants to determine how many people wake up before 6 a. m. Which sample is the most random?
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O the first 20 students who arrive at school in the morning
O all 20 boys on the swim team
O 5 students out of each of the 4 homeroom classes
O the last 20 people in line for breakfast in the cafeteria
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