Conditional and marginal distributions
Another important distinction is between the marginal distribution for a variable and the conditional distributions. The following example illustrates.
Bruising of apples
These diagrams above are closely related to stacked bar charts. When drawn slightly differently, they are called proportional Venn diagrams.
Although proportional Venn diagrams do not help greatly in understanding this section of CAST, they will be useful for explaining some concepts in later sections.
Bruising of apples