These terms simply mean that if the survey were conducted 100 times, the data would be within a certain number of percentage ...

Learn about gross, operating, and net profit margins, how each is calculated, and how businesses and investors can use them to analyze a company’s profitability.

"The polling industry is going through what I would call a paradigm shift, where we're moving from the types of methods that worked 30, 40 years ago and don't really work anymore," Smith said.

"The polling industry is going through what I would call a paradigm shift, where we're moving from the types of methods that worked 30, 40 years ago and don't really work anymore," Smith said.