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A researcher asked people leaving a Willie Nelson concert what kind of music they liked to listen to. She then concluded that 83% of the population liked to listen to country music. What is wrong with this researcher's conclusion?please explain

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What kind of music do you think that people who have attended a country music councert like?

Would a jazz or opera or classical or opera fan be likely to go to a Nelson concert?

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i know they like country music but my question is i cant find anything wrong on this problem thou...

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But the crowd coming from the country music concert does not represent the "population." It just measures the population of those who like Willie Nelson and country music.

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