4.4 (Empirical) Joint distributions

• Measurement process: Assign individuals to cells → distribute across cells → distribution
  • 1 variable → univariate distribution
  • 1+ variables → multivariate joint distribution

• Above units are grouped on three variables (= dimensions): Trust, Victim and Education

• Q: How many cells? How many dimensions? (How about time?) Jitter?
• Q: What would the corresponding dataset/dataframe look like?
• Q: What would a joint distribution with 4 variables look like?
• Q: What is a conditional distribution?
• Q: What does the joint distribution of two perfectly correlated variables look like?