According to data published by the FBI, the crime index in the United States has shown a downward trend since the early 1990s (Table 3).
(A) Find a cubic regression model for the crime index if x = 0 represents 1987.
(B) Use the cubic regression model to predict the crime index in 2025.

Transcribed Image Text:

Table 3 Crime Index Year Crimes per 100,000 Inhabitants 1987 5,550 1992 5,660 1997 4,930 2002 4,125 2007 3,749 2010 3,350 2013 3,099