Stem-and-Leaf Graphs (Stemplots), Line Graphs, and Bar Graphs · Example 5

is a two-way table showing the types of pets owned by men and women.

$$\begin{array}{ccccc}& \text{Dogs}& \text{Cats}& \text{Fish}& \text{Total}\\ \text{Men}& \text{4}& \text{2}& \text{2}& \text{8}\\ \text{Women}& \text{4}& \text{6}& \text{2}& \text{12}\\ \text{Total}& \text{8}& \text{8}& \text{4}& \text{20}\end{array}$$
Given these data, calculate the marginal distributions of pets for the people surveyed.

OpenStax, Statistics · §2.1 Stem-and-Leaf Graphs (Stemplots), Line Graphs, and Bar Graphs · Example 5