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The cafeteria director at Great Minds School wants to know what percent of the students would choose vegetarian entrees if they were available.
Which of the following survey methods will allow the director to make a valid conclusion about the percentage of students who would choose vegetarian entrees?
Choose 1 answer:
A Sort a list of the students into a random order, then ask the first 35 students on the list.
(B) Ask the first 35 students in line for the cafeteria.

The cafeteria director at Great Minds School wants to know what percent of the students would choose vegetarian entrees if they were available.\newlineWhich of the following survey methods will allow the director to make a valid conclusion about the percentage of students who would choose vegetarian entrees?\newlineChoose 11 answer:\newline(A) Sort a list of the students into a random order, then ask the first 3535 students on the list.\newline(B) Ask the first 3535 students in line for the cafeteria.

Full solution

Q. The cafeteria director at Great Minds School wants to know what percent of the students would choose vegetarian entrees if they were available.\newlineWhich of the following survey methods will allow the director to make a valid conclusion about the percentage of students who would choose vegetarian entrees?\newlineChoose 11 answer:\newline(A) Sort a list of the students into a random order, then ask the first 3535 students on the list.\newline(B) Ask the first 3535 students in line for the cafeteria.
  1. Understand the problem: Understand the problem. We need to find out what percentage of students would pick vegetarian meals. We're choosing between two survey methods.
  2. Evaluate option A: Evaluate option A. Sorting students randomly and asking the first 3535 gives every student an equal chance to be selected. This is a random sampling method.
  3. Evaluate option B: Evaluate option B. Asking the first 3535 students in line might not be random because these students could have something in common, like arriving early, which could bias the results.
  4. Decide method: Decide which method is better. Random sampling (option AA) is more likely to represent the whole student body without bias.

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