If the population of the world was 6.5 billion in 2006 and is currently 7.1 billion (in the year 2013), what will the population be in the year 2050?
1 Answer
Jan 16, 2017
10.4 billions.
Explanation:
There are quite many models, for population growth.
The models can be compared, for relative merits.
Here, only two starter data are available. So, I choose a 2-
parameter model. applicable for any growth.
If the year Y = 0 at 2006 and P is the population after Y years,
When, Y = 0, P was 6.5 billions. So, #P_0=6.5.
When it was 7 years from then, Y = 7 and
On this time scale, at 2050, Y = 44, and so, P then will be
P(Y=44)