Question

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

Explanation:

A survey involves asking people questions. A simulation imitates a real - world situation. An experiment manipulates variables. Nico was just observing (looking) at every fifth person in the cafeteria to see their lunch - related behavior.

Answer:

observational study