You are here: Planning the Model > Building a Model > Phase 3: Additional Operations > Defining a Distribution
In order to determine if an entity passes or fails the inspection, you sample from a user-defined distribution called Dist1 (alternately, you could use the RAND() function). To define the distribution, simply click the mouse on the Table... button and fill in the distribution parameters. In this case, 96% of the entities pass inspection and 4% fail.