The same as Problem, except fit a cubic polynomial to the 1960, 1970, 1980, and 1990 population data for the indicated region.
Problem, are intended as calculator or computer problems and are based on the U. S. census data in the table of Fig. 1, listed by national region in millions for the census years 1950-1990. See wwvw.census.gov/population/censusdata/table-16.pdf for further details.
FIGURE 1
Regional population data (in millions)
In Problem, fit a quadratic function to the 1970, 1930, and 1990 population values for the indicated region.
The Northeast
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