standard normal variable
Look at other dictionaries:
Standard normal table — A standard normal table also called the Unit Normal Table is a mathematical table for the values of Φ, the cumulative distribution function of the normal distribution. They are used to find the probability that a statistic is observed below,… … Wikipedia
Standard normal deviate — The standard normal deviate is a normally distributed random variable with expected value 0 and variance 1 … Wikipedia
Normal distribution — This article is about the univariate normal distribution. For normally distributed vectors, see Multivariate normal distribution. Probability density function The red line is the standard normal distribution Cumulative distribution function … Wikipedia
normal distribution — Statistics. a theoretical frequency distribution represented by a normal curve. Also called Gaussian distribution. [1895 1900] * * * In statistics, a frequency distribution in the shape of the classic bell curve. It accurately represents most… … Universalium
Standard probability space — In probability theory, a standard probability space (called also Lebesgue Rokhlin probability space) is a probability space satisfying certain assumptions introduced by Vladimir Rokhlin in 1940 [1] . He showed that the unit interval endowed with… … Wikipedia
normal — normal, ale, aux [ nɔrmal, o ] adj. et n. f. • 1753; verbe normal h. XVe; lat. normalis, de norma « équerre » 1 ♦ Math. Droite normale, ou n. f. la normale à une courbe, à une surface en un point : droite perpendiculaire à la tangente, au plan… … Encyclopédie Universelle
Variable displacement — is an automobile engine technology that allows the engine displacement to change, usually by deactivating cylinders, for improved fuel economy. The technology is primarily used in large, multi cylinder engines. Many automobile manufacturers have… … Wikipedia
Standard deviation — In probability and statistics, the standard deviation is a measure of the dispersion of a collection of values. It can apply to a probability distribution, a random variable, a population or a data set. The standard deviation is usually denoted… … Wikipedia
Standard error (statistics) — For a value that is sampled with an unbiased normally distributed error, the above depicts the proportion of samples that would fall between 0, 1, 2, and 3 standard deviations above and below the actual value. The standard error is the standard… … Wikipedia
Standard score — In statistics, a standard score is a dimensionless quantity derived by subtracting the population mean from an individual raw score and then dividing the difference by the population standard deviation. This conversion process is called… … Wikipedia
Standard streams — In Unix and Unix like operating systems, as well as certain programming language interfaces, the standard streams are preconnected input and output channels between a computer program and its environment (typically a text terminal) when it begins … Wikipedia
