If you're seeing this message, it means we're having trouble loading external resources on our website.

Hvis du er bak et webfilter, vær vennlig å sørge for at domenene .kastatic.org og .kastatic.org ikke er blokkert.

Hovedinnhold

Om dette emnet

Getting reliable data is vital if we want to make correct conclusions.The process of collecting data through studies involves sampling, observations, surveys, and experiments.