The following table shows the approximate number of wireless telephone subscriptions in
recent years.
Year 2005 2006 2007 2008 2009 2010
Subscriptions(Millions) 194 220 243 263 277 293
1. Find the linear correlation coefficient of the data.
2. Fit the data into a linear equation and compute for the slope and the simple regression
equation.
Answers:
1. Linear correlation coefficient: 0.99
2. Slope and the simple regression equation: ŷ = 19.6x- 39098.66667