The table below shows the total population of Mexico for specific years.

1. Recall that average rate of change is calculated by determining the slope between two points. What is the average rate of change for the population from 1900 to 1950

   Hint (a):

   The average rate of change is the slope between two points.
   Calculate the slope between $(1900,13.6)$ and $(1950,26.3)$.
   Pay attention to the units.

2. What is the average rate of change from 1960 to 2010?

3. Given your answers in parts (a) and (b), for which time period is the population growth rate higher? Explain.