Shown, again, in the following table is world population, in billions, for seven selected years from 1950

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Shown, again, in the following table is world population, in billions, for seven selected years from 1950 through 2010. Using a graphing utility’s logistic regression option, we obtain the equation shown on the screen.imageimageWe see from the calculator screen at the bottom of the previous page that a logistic growth model for world population, f(x), in billions, x years after 1949 is


imageUse this function to solve Exercises 38–42.


When did world population reach 7 billion?

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College Algebra

ISBN: 9780134453262

7th Edition

Authors: Robert F Blitzer

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