DISCUSSION - Why is everyone in Copenhagen healthy?
A tourist visiting Copenhagen, Denmark, was walking around town and noticed that everyone looked healthy. Not a sick person to be seen. How could this be true?
The tourist visiting Copenhagen, Denmark concluded that everyone in Copenhagen is healthy based on his survey on people while he was walking around town and this conclusion is not true because the survey conducted by the tourist has under- coverage bias due to the following reason:
Generally a tourist will visit only places like beach, parks, cinema halls, hotels etc., where only healthy people gather. A tourist will never visit a hospital where sick people come. So, places like hospitals are not included in the survey by the tourist.
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