The estimated number of computers (in millions) connected to the Internet in Europe from 1998 through 2002 is summarized in the accompanying table: (Here, x = 0 corresponds to the beginning of 1998.)
Find an equation of the least-squares line for these data. Use the result to estimate the projected number of computers connected to the Internet in Europe at the beginning of 2004, assuming the trend continues.
A) y = 12.1x + 21.06; 94.030 million computers
B) y = 12.2x + 20.94; 94.140 million computers
C) y = 12.1x + 21.06; 93.660 million computers
D) y = 12.2x + 20.94; 93.910 million computers

Question

The estimated number of computers (in millions) connected to the Internet in Europe from 1998 through 2002 is summarized in the accompanying table:  (Here, x = 0 corresponds to the beginning of 1998.)
Find an equation of the least-squares line for these data. Use the result to estimate the projected number of computers connected to the Internet in Europe at the beginning of 2004, assuming the trend continues.
A) y = 12.1x + 21.06; 94.030 million computers 
B) y = 12.2x + 20.94; 94.140 million computers 
C) y = 12.1x + 21.06; 93.660 million computers 
D) y = 12.2x + 20.94; 93.910 million computers

Quizplus · Accepted Answer

The Answer of The estimated number of computers (in millions) connected to the Internet in Europe from 1998 through 2002 is summarized in the accompanying table:  (Here, x = 0 corresponds to the beginning of 1998.)
Find an equation of the least-squares line for these data. Use the result to estimate the projected number of computers connected to the Internet in Europe at the beginning of 2004, assuming the trend continues.
A) y = 12.1x + 21.06; 94.030 million computers 
B) y = 12.2x + 20.94; 94.140 million computers 
C) y = 12.1x + 21.06; 93.660 million computers 
D) y = 12.2x + 20.94; 93.910 million computers

The Estimated Number of Computers (In Millions) Connected to the Internet