A report from the U.S. Department of Justice (www.ojp.usdoj.gov/bjs/) gave the following percent changes in federal prison populations in 20 northeastern and midwestern states during 2005:
| State |
Percent Change During 2005 |
| Connecticut |
-0.3 |
| Maine |
0 |
| Massachusetts |
5.5 |
| New Hampshire |
3.3 |
| New Jersey |
2.2 |
| New York |
-1.6 |
| Pennsylvania |
3.5 |
| Rhode Island |
6.5 |
| Vermont |
5.6 |
| Illinois |
2 |
| Indiana |
1.9 |
| Iowa |
2.5 |
| Kansas |
1.1 |
| Michigan |
1.4 |
| Minnesota |
6 |
| Missouri |
-0.8 |
| Nebraska |
7.9 |
| North Dakota |
4.4 |
| Ohio |
2.3 |
| South Dakota |
11.9 |
| Wisconsin |
-1.0 |
a) Graph these data.
b) Calculate appropriate summary statistics.
c) Write a few sentences about these data. (Remember: shape, center, spread, unusual features.)