EXAMPLE 9.3
Vaccinations and political party preference. Should parents be able to decide whether or not to vaccinate their children or should all vaccinations be required for all children? A Pew Internet survey asked this question of U.S. adults aged 18 and over.1 The following table breaks down these results by political party preference:
| Observed numbers of adults | |||
| Party | |||
| Required | Democratic | Republican | Total |
| No | 230 | 258 | 488 |
| Yes | 729 | 479 | 1208 |
| Total | 959 | 737 | 1696 |