Concept explainers
(a)
To calculate: Approximate the average rate of change of A during period 1980-1986.
(b)
To calculate: Approximate the average rate of change of A during period 1986-1992.
(c)
To calculate: Approximate the average rate of change of A during period 1992-1998.
(d)
To calculate: Approximate the average rate of change of A during period 1998-2004.
(e)
To calculate: Approximate the average rate of change of A during period 2004-2010.
(f)
To calculate: Approximate the average rate of change of A during period 1980-2012.
(g)
To calculate: Approximate the average rate of change of A during period 1990-2012.
(h)
To calculate: Approximate the average rate of change of A during period 2000-2012
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