Life goes on and on for nation's population

  1. Why is the median used as the measure of average in this article?
  2. Draw a graphical representation to states and territories increases in population compared to the national increase. What is a good estimate of the national increase?
  3. Why is it inappropriate to guess the national increase by adding the state and territory averages and dividing by 8?
  4. How did the report calculate the increasing of 138% in persons aged 85 years and older?

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