The geometric distribution is by far the most common memoryless discrete distribution.

At least 750 univariate discrete distributions have been reported in the literature.

In the simplest cases, the result can be either a continuous or a discrete distribution.

For discrete distributions, there is no universal agreement on choosing the quartile values.

The following discussion is in terms of a random variable having a continuous distribution although the same ideas apply to discrete distributions.

Most commonly, though, the rule fails in discrete distributions where the areas to the left and right of the median are not equal.

The technique is however equally applicable to discrete distributions.

These conditions have since been generalised and extended to discrete distributions.

It is common to work with discrete or Gaussian distributions since that simplifies calculations.

These tests may be overly conservative when applied to discrete distribution.