Instant poll. A local TV station conducted an “Instant Poll” 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.