# mean+standard

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**Standard illuminant**— A standard illuminant is a profile or spectrum of visible light which is published in order to allow images or colors recorded under different lighting to be compared.CIE illuminantsThe International Commission on Illumination (usually… …32

**Mean squared error**— In statistics, the mean squared error (MSE) of an estimator is one of many ways to quantify the difference between values implied by a kernel density estimator and the true values of the quantity being estimated. MSE is a risk function,… …33

**Standard Error**— The standard deviation of the sampling distribution of a statistic. Standard error is a statistical term that measures the accuracy with which a sample represents a population. In statistics, a sample mean deviates from the actual mean of a… …34

**Standard time**— Time Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms… …35

**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,… …36

**Mean time**— Time Time, n.; pl. {Times}. [OE. time, AS. t[=i]ma, akin to t[=i]d time, and to Icel. t[=i]mi, Dan. time an hour, Sw. timme. [root]58. See {Tide}, n.] 1. Duration, considered independently of any system of measurement or any employment of terms… …37

**standard deviation**— (sd) a mathematical unit used to describe the spread or dispersion of a set of data. Each item in the data set has a deviation from the mean (the ordinary average) of the data. The standard deviation is computed by taking the squares of these… …38

**Standard RAID levels**— The standard RAID levels are a basic set of RAID configurations and employ striping, mirroring, or parity.The standard RAID levels can be nested for other benefits ( see Nested RAID levels ). Concatenation (SPAN) The controller treats each drive… …39

**standard deviation**— (in statistics) a measure of the scatter of observations about their arithmetic mean, which is calculated from the square root of the variance of the readings in the series. The arithmetic sum of the amounts by which each observation varies from… …40

**Mean corpuscular hemoglobin concentration**— hemoglobin The mean corpuscular hemoglobin concentration, or MCHC, is a measure of the concentration of hemoglobin in a given volume of packed red blood cells. It is reported as part of a standard complete blood count. It is calculated by… …