Is a survey of the guests about their preference of food at a party an observational study or experimental study? If it is an experiment, what is the controlled factor?

Select the correct answer below:

The study is an experiment. The controlled factor is the party.

The study is an experiment. The controlled factor is the food.

The study is an experiment. The controlled factor is the survey.

The study is an observational study.

The study is an observational study.

Step-by-step explanation:

Observational study: In research methods, the term "observational study" is determined as one of the different studies that are being conducted by the researchers to observe or study the effects of a specific risk factor, treatment, diagnostic test, or some other intervention in the absence of an effort to change which participants are being exposed and which is not being exposed to it.

Types: Cohort study and case-control study.

In the question above, the given statement represents the observational study.

where are the images of the functions i can only see the question you typed.

step-by-step explanation:

care to share were the trapezoid shown is ?