Eli5 How do they make sure a poll is unbiased

Question

How do they tell if a poll is unbiased? Where do they poll for politics? Most people I know don’t answer their phones because of scammers. Thanks

In: 0

Answer 1

Whenever possible, they use a random sample. They pick people out of a hat.
Sometimes, as others said, they don’t get the mix they want of certain demographics so they balance it, again, randomly. But in a perfect world, a random sample should have no bias.