
Concept explainers
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.
We 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
Use this function to solve Exercises 38-42.
How well does the function model the data showing a world population of 6.9 billion for 2010?

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Chapter 4 Solutions
MyLab Math with Pearson eText -- Standalone Access Card -- for Algebra and Trigonometry (6th Edition)
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- log (6x+5)-log 3 = log 2 - log xarrow_forward1 The ratio of Argan to Potassium from a sample found sample found in Canada is .195 Find The estimated age of the sample A In (1+8.33 (+)) t = (1-26 × 109) en (1 In aarrow_forward7. Find the doubling time of an investment earning 2.5% interest compounded a) semiannually b) continuouslyarrow_forward
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