Average gas prices
Columbia, SC
Year Gas Price
2002 $0.70
2003 $1.04
2004 $1.15
2005 $1.38
2006 $1.86
2007 $1.70
2008 $2.55
2009 $1.29
2010 $2.22
2011 $2.56
Cabs use a valuable commodity-gas!
Is there a trend in the data? Does there seem to be a positive correlation, a negative correlation, or neither?
The data represents a positive correlation.
The data represents a negative correlation.
The data does not have any correlation.