Use of Random Sampling in Research

Use of Random Sampling in Research

Pew Research Center has a great video that explains random sampling and how a survey of 1000 people can provide details on what the whole United States is thinking. It is an effort by the organization to more effectively communicate how research techniques, developed over many years, can very accurately determine statistical details. For those who have never taken a statistics class, it is a very good introduction on how this form of research works.