To find how high school students feel about hot lunches, adam walks to the nearest high school and gives a survey postcard to every twentieth student that enters the building. he asks the students to mail the postcard in if they choose to participate in the study. select all sampling methods used.

Respuesta :

All the sampling methods used in the given survey are; convenience, systematic, and voluntary sampling.

What is the sampling method used?

From the question, we see that the surveyor selects the twentieth student who enters the building.

Now, the student do not enter the building to be surveyed but instead for other reasons and as such the researcher takes advantage of that and selects them. This is a form of convenience sampling.

It is also a form of systematic sampling because the researcher selects every twentieth student and not any other.

Lastly, it is a form of Voluntary sampling because the students selected to participate in the survey are free to choose whether to participate in the survey or not.

Read more about Sampling Methods at; https://brainly.com/question/9910540

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