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28 December, 05:13

A school newspaper will survey students about the quality of the

school's lunch program. Which method will create the least biased

results?

(1) Twenty-five vegetarians are randomly surveyed.

(2) Twenty-five students are randomly chosen from each grade

level.

(3) Students who dislike the school's lunch program are chosen to

complete the survey.

(4) A booth is set up in the cafeteria for the students to voluntarily

complete the survey.

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Answers (1)
  1. 28 December, 06:17
    0
    Method 2 is the least biased.

    1) vegetarians are a select group, so they might have a certain biased perspective

    2) if students are chosen randomly from every grade, all grades are included and there will be a variety of responses

    3) not all students dislike the program, so it is an unfair representation

    4) only students who have a strong opinion will complete the survey
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