Error bars illustrate the margin of error for a survey estimate by showing how precise that estimate is. Here are some answers to common questions that might help you better understand charts with ...

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 ...

(WSAW) - Many statewide races were tight on Election Day, showing how purple Wisconsin is and how every vote counts. It was predicted in polling and many of the results did not surprise political ...

Early voting has begun in the key battleground state of Georgia, where polls show the race within the margin of error. About 328,000 voters have already cast their ...