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Passengers and crew on the Titanic
The Board of Trade inquiry's counts, grouped by class, sex, age and survival.
These are aggregate counts, not a record of individual routes. Follow each ribbon through class, sex and survival; inspect a ribbon to read its count.
Survival differed across class and sex
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8 links with a value of zero are not drawn · ribbons add up the rows that share two neighbouring categories and the first category
Source: Titanic passenger and crew counts from the British Board of Trade inquiry, via Dawson (1995) and the R datasets package. Age groups are summed in this view.
What an aggregate hides
Class includes the crew as well as the passenger classes. The source also separates adults and children; this view sums those groups. These ribbons are counts from a contingency table, not traced journeys of individuals. Use the CSV to inspect the age split before drawing conclusions about any subgroup.