Univariate

• non-graphical
  • categorical
    • frequency table 🔳
  • quantitative
    • center
      • mean ✅ (boxplot)
      • median ✅ (boxplot)
    • spread
      • variance 🔳
      • standard deviation 🔳
      • interquartile range ✅ (boxplot)
      • range ✅ (boxplot)
    • modality
      • mode 🔳
    • shape
      • skewness 🔳
      • kurtosis 🔳
      • outliers ✅ (boxplot)
• graphical
  • categorical
  • quantitative
    • histogram 🔳
    • stem and leaf plot 🔳
    • box plot ✅
    • QQ plot 🔳

Multivariate

• non-graphical
  • 2 categorical
    • cross-tabulation 🔳
  • 1 categorical, 1 quantitative
    • univariate stats for each level of the categorical variable 🔳
    • ANOVA (compare means for each level of categorical) 🔳
• graphical
  • univariate plots by category
    • multi box plot ✅
    • multiple histograms 🔳
  • scatterplot ✅

Reference: Seltman 2018