Every four years, when it is time to elect a new president, we pay much attention to surveys, which we usually call "polls." even though there are more than 300 million people in the united states, most political pollsters ask about a thousand people who they plan to vote for and use that information to predict how the election will turn out. who is the sample for a presidential poll?

A thousand peoples who they plan to take survey the are Sample.

Explanation:

Since Political parties can't ask all 300 million people about polls thus they choose thousand people to predict how the election will turn out. These thousand peoples are Sample.

The sample is a subset of the population and it is easy to analyze as compared to the population.

The sample is said to be representative if it represents the whole population.

i dont know sorry why dont you looking it up on google