The following data represent 15 randomly selected state ?nances: revenue and expenditures (in millions of dollars) for the ?scal year 1997 (source: The World Almanac and Book of Facts 2000).
|
Revenue:
|
9,439
26,538
|
8,845
5,537
|
14,520
6,494
|
24,028
2,818
|
39,038
49,318
|
5,215
4,229
|
20,128
7,724
|
7,467
|
|
Expenditure:
|
5,722
25,791
|
7,685
4,808
|
13,862
5,130
|
21,975
2,426
|
35,302
39,296
|
4,441
4,002
|
16,200
6,818
|
7,145
|
(a) Draw a scatterplot.
(b) Find the sample correlation between revenue and expenditure.
(c) Draw a QQ plot.
(d) Interpret (a), (b), and (c).