(a) Use a graphing calculator to fit a regression line to the data in Exercise 61.
(b) Estimate the number of Internet users worldwide in 2013 and compare the value with the result found in Exercise 61.
In Exercise 61
Year, x Number of Internet Users Worldwide,
y (in millions)
2001, 0 ............................................... 495
2002, 1 ............................................... 677
2003, 2 ............................................... 785
2004, 3 ............................................... 914
2005, 4 ............................................... 1036
2006, 5 ............................................... 1159
2007, 6 ............................................... 1393
2008, 7 ............................................... 1611
2009, 8 ............................................... 1858
2010, 9 ............................................... 2084*
(c) Find the correlation coefficient for the regression line and determine whether the line fits the data closely.