normal distribution

WordReference Random House Unabridged Dictionary of American English © 2025

nor′mal distribu′tion, [Statistics.]

1. Statistics a theoretical frequency distribution represented by a normal curve. Also called Gaussian distribution. 

• 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::

normal distribution noun

1. a continuous distribution of a random variable with its mean, median, and mode equal, the probability density function of which is given by (exp-[(x–μ)²/2σ²]/σ√(2π)) where μ is the mean and σ² the variance
   Also called: Gaussian distribution