Achef wanted to know if people liked the food in his new restaurant. for that purpose, he surveyed all the food critics who went to the restaurant during the first month it was open.
a. is this sample likely to be biased?
b. explain

Answer and explanation:

A) Yes, the sample gathered by surveying food critics only is most likely to be biased.

B) If the chef is going to survey only the food critics and not include the regular customers who visit the restaurant then this will result in a biased survey.

The reason being that there will exist a systematic error since the surveyed people will not cover the whole population as it will only be limited to the food critics.

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