The following table compares U.S. population (millions) with U.S. per-capita consumption of bottled water (gallons).

a. Determine the least-squares regression line and the value of r.
b. What proportion of the variability in per-capita bottled water consumption is explained by the regression equation?
c. During a year in which the U.S. population is 320 million, what would be the prediction for percapita consumption of bottled water?

Transcribed Image Text:

y Per-Capita Consumption of Bottled Water Year 2002 2003 2004 2005 2006 Population 287.9 million 290.4 293.2 295.9 298.8 20.1 gallons 23.2 25.5 27.6