Table 2. Contingency table and conditional distribution.

Exposure	Response (heart disease)
	Yes	No	Total
High cholesterol diet
Frequency	11	4	15
Percent	47.83	17.39	65.22
Row percent	73.33	26.67
Low cholesterol diet
Frequency	2	6	8
Percent	8.70	26.09	34.78
Row percent	25.00	75.00
Total	13	10	23
	56.52	43.48	100