
Concept explainers
To use:the data in the table to model the percentage of population of Argentina in year 1955 to 2000. Then use this model to estimate the percentage of people in the year 1988 and 2002.

Answer to Problem 24E
Explanation of Solution
Given:
The given table is:
Year | Percentage (rural) | Year | Percentage (rural) |
Calculation:
Use technology to plot given points, and use cubic regression tools to graph a curve.
The graph is:
The equation of regression curve is
Substitute
Therefore,
Thus, the approximation percentage in the year 1988 is around
Substitute
Therefore,
Thus, the approximation percentage in the year 2002 is around
Chapter 1 Solutions
Single Variable Calculus: Concepts and Contexts, Enhanced Edition
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