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What is the most common observational study?Group of answer choicesA surveyA random sampleAn experiment

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What is the most common observational study?Group of answer choicesA surveyA random sampleAn experiment
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Solution 1

The most common observational study among the given choices is "A survey".

Step 1: Understanding Observational Studies Observational studies are a type of research design where researchers observe the effect of a risk factor, diagnostic test, treatment or other intervention without trying to change Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.

Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
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