random sampling

The Statistical Logic Behind Surveys—And Why Their Results Depend on More Than Just Numbers If it feels like you’re asked to take a survey 10 times a day, you’re not imagining it. But how many do you actually fill out? And how can a relatively small number of responses draw conclusions about millions of people? The idea that a small group can represent millions may seem … [Read more...] about How 1,000 People Speak for Millions