A survey contains data on 1309 passengers and crew who were on board the ship Titanic' when it sank in 1912. Only 38.2% of those on board survived. Age and far are continuous and the others are categorical. Class has three categories (1=1st, 2-2nd, 3=3rd) and passengers were grouped into three countries of residence (0=American, 1=British, 2=Other) as follows