4.130 Households and families in government data.
In government data, a household consists of all occupants of a dwelling unit, while a family consists of two or more persons who live together and are related by blood or marriage. So all families form households, but some households are not families. Here are the distributions of household size and of family size in the United States:
| Number of persons |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Household probability |
0.27 | 0.33 | 0.16 | 0.14 | 0.06 | 0.03 | 0.01 |
| Family probability |
0.00 | 0.44 | 0.22 | 0.20 | 0.09 | 0.03 | 0.02 |
Compare the two distributions using probability histograms on the same scale. Also compare the two distributions using means and standard deviations. Write a summary of your comparisons using your calculations to back up your statements.