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 weather every fifth person in the cafeteria purchased lunch or brought their own

Answer 1

Answer:

D. Observational study

Step-by-step explanation:

We are given that Nico looked around the cafeteria during the lunch to see whether people purchased lunch or brought their own.

It is known that:

1. 'Survey' means to question a wide variety of population about their views on a particular issue.

2. 'Simulation' refers to act out a situation or process in order to find some conclusions.

3. 'Experiment' represent a scientific procedure undertaken in demonstrate a fact or test a hypothesis.

4. 'Observational study' is to study the samples without the variables being under the control of the observer.

Answer 2

I'm pretty sure the answer is D observational study.