The following problems use the Hypergeometric Distribution. Complete each using the formulas posted or the Hypergeometric Template. Clearly identify your answers.

The Hypergeometric Distribution (The Hypergeometric Model)

Suppose that a population consists of N items and that r of these items are successes and (N ? r) of these items are failures. If we randomly select n of the N items without replacement, it can be shown that the probability that x of the n randomly selected items will be successes is given by the hypergeometric probability formula

\f= n 1 N - n and 2 N X n r O = N N N - 1