normal distribution

noun

Statistics.

1. a theoretical frequency distribution represented by a normal curve.

normal distribution

noun

1. Also called: Gaussian distribution. 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

normal distribution

1. A theoretical frequency distribution for a set of variable data, usually represented by a bell-shaped curve symmetrical about the mean.

Word History and Origins

Origin of normal distribution¹

First recorded in 1895–1900