The historical world population (in millions) is given in the following chart.
Year
1000
1650
1800
1850
1900
1920
1930
World population, in millions
200
545
924
1171
1635
1834
2170
a) Write the exponential model, P(t), that represents the world population. Do not zero out the years!
b) What does the model predict for the world population in 2008? The actual world population in 2008 was about 6.7 billion (6700 million). How accurate is the model’s prediction?
c) According to the model, when was the world population 1 billion? Compare that answer with the information in the chart. How accurate is the model’s prediction?
