[MINI] Heteroskedasticity
Heteroskedasticity is a term used to describe a relationship between two variables which has unequal variance over the range. \xa0For example, the variance in the length of a cat's tail almost certainly changes (grows) with age. \xa0On the other hand, the average amount of chewing gum a person consume probably has a consistent variance over a wide range of human heights.
We also discuss some issues with the visualization shown in the tweet embedded below.