Unwed births:
The National Center for Health Statistics reported the data below, showing the percentage of all births that are to unmarried women for selected years between 1980 and 1998.
Create a model that describes this trend. Justify decisions you make about how to best use these data.
|
Year
|
1980
|
1985
|
1990
|
1991
|
1992
|
1993
|
1994
|
1995
|
1996
|
1997
|
1998
|
|
%
|
18.4
|
22.0
|
28.0
|
29.5
|
30.1
|
31.0
|
32.6
|
32.2
|
32.4
|
32.4
|
32.8
|