Topic: Comparing Groups and Handling Outliers

Writing a Group Comparison from a Graph

Worked Group Comparison from Data to Summary

Why Nonlinear Transformations Change Group Gaps

Why Larger Groups May Have More Outlier Flags

Square-Root Transformations for Count Data

Side-By-Side Boxplots on a Common Scale

Side-By-Side Histograms for Group Comparisons

Outlier Flags in Skewed Distributions

Multiplying Observations by a Positive Constant

Log Transformations for Right-Skewed Groups