If you were given a set of data, such as population vs time, for example:
(years) 0, 10, 20, 30, 40, 50, 60
(population)5, 10, 20, 40, 80, 160, 320
Would you get the overall average rate of change by calculating each individual average rate of change and then averaging that? Or just by dividing the last population variable, 320, by the last time variable, 60?
(this was part of a functions chapter in my textbook)