If there is one thing we can all agree about following the presidential election, it's that the polls - and the news media reporting them - were nearly all wrong. This is bad news for the news media, ...

Discover how to determine the ideal percentage of a population for a representative sample to ensure accurate data analysis with minimal sampling error.

In presidential elections, even the smallest changes in horse-race poll results seem to become imbued with deep meaning. But they are often overstated. Pollsters ...