The hypergeometric distribution is discrete. It is similar to the binomial distribution. Both describe the number of times a particular event occurs in a fixed number of trials. However, binomial distribution trials are independent, while hypergeometric distribution trials change the success rate for each subsequent trial and are called “trials without replacement”. The hypergeometric distribution can be used for sampling problems such as the chance of picking a defective part from a box (without returning parts to the box for the next trial).
The hypergeometric distribution is used under these conditions: