Score de vocabulaire vs classe sociale auto-identifiée

Inférence pour des données numériques en R

Mine Cetinkaya-Rundel

Associate Professor of the Practice, Duke University

Score de vocabulaire et classe sociale auto-identifiée

wordsum : test de vocabulaire en 10 questions (score de 0 à 10)
class : classe sociale déclarée (lower, working, middle, upper)

   wordsum  class 
1        6 MIDDLE  
2        9 WORKING 
3        6 WORKING 
4        5 WORKING 
5        6 WORKING 
6        6 WORKING 
...    ...     ...     
795      9 MIDDLE

SPACE (school, noon, captain, room, board, don't know)
BROADEN (efface, make level, elapse, embroider, widen, don't know)
EMANATE (populate, free, prominent, rival, come, don't know)
EDIBLE (auspicious, eligible, fit to eat, sagacious, able to speak, don't know)
ANIMOSITY (hatred, animation, disobedience, diversity, friendship, don't know)
PACT (puissance, remonstrance, agreement, skillet, pressure, don't know)
CLOISTERED (miniature, bunched, arched, malady, secluded, don't know)
CAPRICE (value, a star, grimace, whim, inducement, don't know)
ACCUSTOM (disappoint, customary, encounter, get used to, business, don't know)
ALLUSION (reference, dream, eulogy, illusion, aria, don't know)

Distribution du score de vocabulaire

ggplot(data = gss, aes(x = wordsum)) +
  geom_histogram(binwidth = 1)

Histogram of wordsum

Classe sociale auto-identifiée : `class`

Si l'on vous demandait de nommer votre classe sociale parmi quatre options, à laquelle diriez-vous appartenir : lower class, working class, middle class ou upper class ?

ggplot(data = gss, aes(x = wordsum)) +
  geom_histogram(binwidth = 1)

Bar plot of class

Passons à la pratique !

Inférence pour des données numériques en R