British Dictionary definitions for normal distribution
normal distribution
noun
1.
(statistics) 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
statistics (Or "Gaussian distribution") The frequency distribution of many natural phenomena such as the height or intelligence of people of a certain age and sex. The formula looks something like: P(x) = e^(((x-m)/s)^2) where P(x) is the probability of a measurement x, m is the mean value of x and s is the standard deviation. Also known as a "bell curve" because of its shape. (2003-10-25)