Effcient estimator

An efficient estimator is a statistical tool used to estimate a certain value, like the average of a group, in a way that makes the best use of available data. It aims to provide estimates that are not only accurate but also precise—meaning they have a small margin of error. In simpler terms, if you gather information (like survey results), an efficient estimator helps you find the most reliable answer while minimizing uncertainty, allowing for better decision-making based on that data. It's about getting the most trustworthy results possible from the information at hand.