Description: Sal uses a Venn diagram to introduce two-way frequency tables. The ones that are colored in brown have chocolate on the outside and the ones that have a C on them means that they have coconut on the inside. So for example, this one over here in the top left, it's made out of chocolate on the outside, but it doesn't have coconut on the inside. While this one right over here is chocolate on the outside and it has coconut on the inside.*Teacher Advisor is 100% free.