Check your understanding
Quiz
You have finished EDA: a framework for a first look, one and two variables, outliers, categorical and multivariate views, and data quality. This quiz checks what stuck. The last two steps are live R.
Question 1 of 8
Mean versus median
A column of household incomes is right-skewed (a few very high earners). How do the mean and median compare?
Correct: extreme highs drag the mean above the more robust median.
The median is always defined.