StellarAssociations Between Variables
Association
Positive association — as one variable increases, the other tends to increase Negative association — as one variable increases, the other tends to decrease No association — knowing one variable tells us nothing about the other
When examining two variables, first identify:
- Are both categorical? → Use two-way tables and bar charts
- Both quantitative? → Use scatterplots and correlation
- One of each? → Use side-by-side boxplots or dotplots
Explanatory variable Response variable