Concept explainers
The graph displays world population over time. Study the graph and answer the following questions.
World population versus Time
Source: http://www.Worldomotors.info/world-population/
(a) What was the world population in 1950?
(b) What was the world population in 2010?
(c) How much did the population increase between 1950 and 2010?
(d) What is the average rate of increase over this time?
(e) If the average rate of increase remains constant, estimate the world population in 2035.
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