SCHOOL ENROLLMENT The numbers (in millions) of students enrolled in schools in the
Chapter 1, Problem 77(choose chapter or problem)
SCHOOL ENROLLMENT The numbers (in millions) of students enrolled in schools in the United States from 1995 through 2006 are shown in the table. (Source: U.S. Census Bureau) (a) Use a graphing utility to create a scatter plot of the data. Let represent the year, with corresponding to 1995. (b) Use the regression feature of a graphing utility to find a quartic model for the data. (c) Graph the model and the scatter plot in the same viewing window. How well does the model fit the data? (d) According to the model, during what range of years will the number of students enrolled in schools exceed 74 million? (e) Is the model valid for long-term predictions of student enrollment in schools? Explain.
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