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Selection Bias

The conclusion is a mistake because it assumes that everyone who saw the survey answered it. Maybe 1000 people saw the survey, and 900 of them thought, “I don’t like surveys, so I’m not going to fill it out.” These people wouldn’t have been included in the results.

This is an example of something called “selection bias”. This happens when you collect information in a way that doesn’t include everyone or everything that it should, which can lead to results that are inaccurate.

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