Stem-and-Leaf Graphs (Stemplots), Line Graphs, and Bar Graphs: example 2.8

Table 2.14 is a two-way table showing the types of pets owned by men and women.

	Dogs	Cats	Fish	Total
Men	4	2	2	8
Women	4	6	2	12
Total	8	8	4	20

Table 2.14

Given these data, calculate the conditional distributions for the subpopulation of men who own each pet type.

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution
$Men who own dogs = 4/8 = 0.5$
$Men who own cats = 2/8 = 0.25$
$Men who own fish = 2/8 = 0.25$
Note—The sum of all the conditional distributions must equal one. In this case, $0.5 + 0.25 + 0.25 = 1;$ therefore, the solution checks.

How did it go?

Dogs

Cats

Fish

Total

Men

Women

Total