ABSTRACT
What is so remarkable about the idea of" center" to mean an extensive range of investigations that connect geometry to population studies? After all, center is simply the midpoint of the diameter of a circle-or the mean of a data set-or a median value of a sorted list-or the location that minimizes the sum ofdistances-or ... ? Exactly! The concept of "center" is not as simple as we thought. Its meaning depends on the context of the application. When it is used to summarize and analyze an entire set of data, it can be a powerful tool for investigative student projects.
