Graphical depiction of data: Histogram and Ogive
1. Make a grouped frequency distributionusing 35,000 - 39,999 as the limits of the first class.
2. Make a histogram. Describe its shape. Predict, based on the shape, the relationship between the mean and median. Find the actual mean and median
3. Make an ogive. Show how to use it to estimate the median.
4. The mean for the US was 50022. Explain why that is different from the mean you found. (ignore the fact that you have medians rather than means)
|
State's Median |
|
income 2009-2010 |
| Alabama |
40,808 |
| Alaska |
60,409 |
| Arizona |
46,886 |
| Arkansas |
37,856 |
| California |
55,760 |
| Colorado |
58,647 |
| Connecticut |
66,187 |
| Delaware |
54,122 |
| District of Columbia |
54,773 |
| Florida |
45,313 |
| Georgia |
44,082 |
| Hawaii |
57,537 |
| Idaho |
47,282 |
| Illinois |
52,252 |
| Indiana |
45,679 |
| Iowa |
50,368 |
| Kansas |
45,842 |
| Kentucky |
42,302 |
| Louisiana |
42,813 |
| Maine |
48,209 |
| Maryland |
64,635 |
| Massachusetts |
60,843 |
| Michigan |
46,597 |
| Minnesota |
54,785 |
| Mississippi |
36,821 |
| Missouri |
47,879 |
| Montana |
41,286 |
| Nebraska |
51,571 |
| Nevada |
51,904 |
| New Hampshire |
65,948 |
| New Jersey |
64,693 |
| New Mexico |
44,679 |
| New York |
50,435 |
| North Carolina |
43,175 |
| North Dakota |
51,141 |
| Ohio |
46,364 |
| Oklahoma |
45,018 |
| Oregon |
50,217 |
| Pennsylvania |
48,714 |
| Rhode Island |
52,200 |
| South Carolina |
41,744 |
| South Dakota |
46,126 |
| Tennessee |
39,936 |
| Texas |
47,862 |
| Utah |
58,122 |
| Vermont |
54,562 |
| Virginia |
60,931 |
| Washington |
58,821 |
| West Virginia |
41,999 |
| Wisconsin |
51,303 |
| Wyoming |
52,848 |