The following table gives the gross domestic product (GDP) in R100 millions for a certain African country from 2001 to 2011.
|
Year
GDP
|
2001
45
|
2002
47
|
2003
61
|
2004
64
|
2005
72
|
2006
74
|
2007
84
|
2008
81
|
2009
93
|
2010
90
|
2011
98
|
(a) Plot the GDP time series graphically.
(b) Calculate the least squares trendline for GDP.
(c) Use this equation to predict the country's GDP for 2012 and 2013.