Dades del Titanic http://ssi.umh.ac.be/titanic.html Relació entre variables categòriques
En el desastre del Titànic, les dones tenien més possibilitats de salvar-se que els homes ?
Associació entre Gènere i Sobreviure Classe & Sobreviure Gènere & Classe ...
Taula de contingència Freqüències marginals (fila/ columna) no yes female 126 344 male 1364 366 Marginal fila: [1] 470 1730 Marginal columna: [1] 1490 710 >
Associació Sobreviure vs Gènere no yes female 26.8 73.2 male 78.8 21.2
Taula de contingència X1st female male 1st 145 179 2nd 106 179 3rd 196 510 crew 23 862
Distribucions marginals fila/columna 1st 2nd 3rd crew 324 285 706 885 female male 470 1730 >
Taula de Freqüències condicionades (fila) female male X1st 1st 44.8 55.2 2nd 37.2 62.8 3rd 27.8 72.2 crew 2.6 97.4 A 1ra classe, hi ha quasi tants homes com dones. A 3ra classe, els homes dupliquen les dones!.
Sobreviure vs Classe yes no yes X1st 1st 37.7 62.3 2nd 58.6 41.4 3rd 74.8 25.2 crew 76.0 24.0
Sobreviure vs Gènere & Classe yes no yes X1st male 1st female 2.8 97.2 male 65.9 34.1 2nd female 12.3 87.7 male 86.0 14.0 3rd female 54.1 45.9 male 82.7 17.3 crew female 13.0 87.0 male 77.7 22.3
Taula de contingència survived: no yes X1st adult male 1st adult female 4 140 male 118 56 child female 0 1 male 0 5 2nd adult female 13 80 male 154 14 child female 0 13 male 0 11 3rd adult female 89 76 male 387 75 child female 17 14 male 35 13 crew adult female 3 20 male 670 192 child female 0 0 male 0 0
Sobreviure vs Gènere & Edat & Classe survived: no yes X1st adult male 1st adult female 2.8 97.2 male 67.8 32.2 child female 0.0 100.0 male 0.0 100.0 2nd adult female 14.0 86.0 male 91.7 8.3 3rd adult female 53.9 46.1 male 83.8 16.2 child female 54.8 45.2 male 72.9 27.1 crew adult female 13.0 87.0 male 77.7 22.3 child female NaN NaN male NaN NaN