In just about any discussion of a poll about the very close presidential race between Vice President Kamala Harris and former President Donald Trump, you’ll hear ...

I am a statistician, and part of my job is to make inferences and predictions. With unlimited time and money, I could simply test or survey the entire group of people I am interested in to evaluate ...

In just about any discussion of a poll about the very close presidential race between Vice President Kamala Harris and former President Donald Trump, you'll hear the ...

As Americans await the presidential election results, many are looking to the polls for clues. A poll’s margin of error describes how close a survey result can ...

Understanding the confidence interval will help you grasp what an election poll is -- or is not -- saying. As you might have guessed, the media consistently gets it wrong. Candidate Gobermouch is ...

Democratic presidential nominee Hillary Clinton maintains a meaningful – if slightly shrinking – lead over Republican Donald Trump. She's been ahead since the Democratic convention in July. Here's a ...

North Carolina Sen. Richard Burr might or might not be leading Deborah Ross. His lead in a recent Emerson College poll is not outside the margin of error. Lauren ...