Q distribution

In mathematics and statistics, Q-distribution or q-distribution may refer to:

• Q-function, the tail distribution function of the standard normal distribution

• The studentized range distribution, which is the distribution followed by the q-statistic (lowercase Q; the Q-statistic with uppercase Q, from the Box-Pierce test or Ljung-Box test, follows the chi-squared distribution)

• q-analog distributions:

• Gaussian q-distribution (to be distinguished from the q-Gaussian distribution), a family of probability distributions that includes the uniform distribution and the normal (Gaussian) distribution
• q-Gaussian distribution (to be distinguished from the Gaussian q-distribution), a type of Tsallis distribution
• q-exponential distribution, a type of Tsallis distribution
• q-Weibull distribution, a type of Tsallis distribution