\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Data can be described by different types of variables:
  • Qualitative variable (categorical): Describes a quality or category. The possible answers are words or labels. Think: "What kind?" (e.g., eye color, favorite food).
  • Quantitative variable (numerical): Describes a quantity or number that can be counted or measured. Think: "How many?" or "How much?" (e.g., height, number of siblings).