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Chapter 3 Explorations
Section 3.2, Extension of Exploration Exercise 57 (page 299)Go to the U.S. Census Bureau www.census.gov. Under "People" click on "Estimates." Under "Choose a Popular Table", select "2000 to 2002 Population Estimate by State". Look up the population of the United States for 2002.
(a) Use the population from table 3.9, p.
293, and logistic regression to predict the U.S. population in 2002.
(b) Use the population from table 3.9, p. 293, and exponential
regression to predict the U.S. population in 2002.
(c) Which model—exponential or logistic—makes the better
prediction in this case?
Section 3.3, Extension of Exploration 1 (page 302)
Set your grapher in parametric mode. Let X1T = T, Y1T = T2, X2T = Y1T, and Y2T = X1T, for T ? 0. Identify the graph of (X2T, Y2T).
Section 3.4, Extension of Exploration 2 (page 312)
Let 
.
Find the domain of each function and compare their graphs.