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

The answer is D(observational study

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The correct answer is observational study.

Step-by-step explanation:

This type of method to collect data is called observational study. In this type of study the research is independent of variable. Here, Nico is quietly walking and observing every 5th student to conduct his research and collect data, out of hundreds of students. So, its observational study.

what?

step-by-step explanation:

6 meters

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