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Exercise :
Mistaken poll:

A local TV station conducted a PulsePoll to predict the winner in the upcoming mayoral election. Evening news viewers were invited to phone in their votes, with the results to be announced on the late-night news. Based on the phone calls, the station predicted that Amabo would win the election with 52% of the vote.

They were wrong: Amabo lost, getting only 46% of the vote. Do you think the station s faulty prediction is more likely to be a result of bias or sampling error? Explain.

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Statistics and Probability, Statistics

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