Year
1960
1973
1986
1995
2002
2003
Cost of slice of Pizza
0.15
0.35
1.00
1.25
1.75
2.00
Subway fare
0.15
0.35
1.00
1.35
1.50
2.00
CPI
30.2
48.3
112.3
162.2
191.9
197.8
Using the data in the table, construct a scatter plot of the
pizza cost (x) versus the subway fare (y). Determine the
regression line including the correlation coefficient (r) and the
explained variation (r2). Show your scatter plot
and line on a graph.
Explain what the y-intercept, slope, r and r2 mean
and whether the relationship makes any sense.
(Explain how you you got answers)