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.