Questions: Nico wanted to determine the number of students in his school who buy school lunch. He walked around the cafeteria one lunch period looking to see whether every fifth person in the cafeteria purchased lunch or brought their own. Which method did he use to collect his data? survey simulation experiment observational study

Nico wanted to determine the number of students in his school who buy school lunch. He walked around the cafeteria one lunch period looking to see whether every fifth person in the cafeteria purchased lunch or brought their own. Which method did he use to collect his data? survey simulation experiment observational study
Transcript text: Nico wanted to determine the number of students in his school who buy school lunch. He walked around the cafeteria one lunch period looking to see whether every fifth person in the cafeteria purchased lunch or brought their own. Which method did he use to collect his data? survey simulation experiment observational study
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Solution

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Solution Steps

Step 1: Identify the data collection method

Nico observed the behavior of students in the cafeteria by checking whether every fifth person purchased lunch or brought their own. This involves directly observing and recording data without interfering with the subjects.

Step 2: Match the method to the options

The options provided are:

  • Survey
  • Simulation
  • Experiment
  • Observational study
Step 3: Determine the correct method

Since Nico did not interact with the students or manipulate any variables, and simply observed their behavior, the correct method is an observational study.

Final Answer

The correct answer is D.

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