It's often difficult to find the ideal model for situations in which the data are strongly curved. The table below shows the rapid growth of the number of academic journals published on the Internet during the last decade.
|
Year
|
Number of Journals
|
|
1991
|
27
|
|
1992
|
36
|
|
1993
|
45
|
|
1994
|
181
|
|
1995
|
306
|
|
1996
|
1093
|
|
1997
|
2459
|
a) Try to create a good model to describe this growth.
b) Use your model to estimate the number of electronic journals in the year 2000.
c) Comment on your faith in this estimate.