BYU-Idaho Online Learning
Video Transcript
[This is a one page interactive to help practice margin of error and its effects.]
[An Image of Craig from video, explaining about margin of error is shown.]
Craig: “Well, with a margin of error of 3%, that just means anywhere between 48% and 54% of voters will choose Andrews and 46 to 52% will go with Garcia. So really it’s anyone's game.
The following graphic shows the two confidence intervals we computed represented on a number line. [Two bars spanning across a number line of percentages depict each scenario for if either Andrews or Garcia wins. Garcia’s bar is higher in percentages, but overlaps with the bar representing Andrews in the lower percentages.]
How could Andrews win?
Andrew could have 51% of the vote.
Garcia could have 49% of the vote.
The percentages shown above give one example of how these confidence intervals predict Andrews could win the election.
How could Garca win?
Andrew could have 47% of the vote.
Garcia could have 53% of the vote.
The percentages shown above give one example of how these confidence intervals predict Garcia could win the election.
[End of activity.]