a bell-shaped curve showing a particular distribution of probability over the values of a random variable.
Also called Gaussian curve, probability curve.
(statistics) a symmetrical bell-shaped curve representing the probability density function of a normal distribution. The area of a vertical section of the curve represents the probability that the random variable lies between the values which delimit the section
[nawr-muh l-see] /ˈnɔr məl si/ noun 1. the quality or condition of being , as the general economic, political, and social conditions of a nation; normality: After months of living in a state of tension, all yearned for a return to normalcy. n. 1857, “mathematical condition of being at right angles,” from normal + -cy. […]
noun, Statistics. 1. a theoretical frequency distribution represented by a normal curve. 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 normal distribution (nôr’məl) […]
- Normal distribution curve
In statistics, the theoretical curve that shows how often an experiment will produce a particular result. The curve is symmetrical and bell shaped, showing that trials will usually give a result near the average, but will occasionally deviate by large amounts. The width of the “bell” indicates how much confidence one can have in the […]
noun, Mathematics. 1. a normal subgroup.