The economic dependency ratio is defined as the number of persons in the total population who are
Question:
The table shows the economic dependency ratio for selected years from 1960 and projected to 2050.
(a) Model these data with a cubic function, R(x), where R(x) is the economic dependency ratio and x is the number of years past 1950. Report the model with three significant digit coefficients.
(b) Use the reported model from part (a) to find the function that models the rate of change of R(x).
(c) Find the function that gives the rate of change of R'(x).
(d) Find and interpret R'(90) and R"(90).
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Related Book For
Mathematical Applications for the Management Life and Social Sciences
ISBN: 978-1305108042
11th edition
Authors: Ronald J. Harshbarger, James J. Reynolds
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