ABSTRACT
Models with three or more discrete variates often occur in scientific research. This chapter extends the two variable models of the previous chapter to the three binary variables case. After illustrating such data in the form of two 2 × 2 tables, we present statistical models for them, and develop unconditional and conditional methods to analyze them. The specific aims are to present:
• The ideas systematic and random variation, and formally define the concept of an exact distribution.
