# standard error of the mean

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**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… … Investment dictionary

**standard error** — n. Statistics a measure of the dispersion in the distribution of differences between expected and observed values of a statistic: the standard error of the mean is equal to the standard deviation of the original frequency distribution divided by… … English World dictionary

**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 error** — noun Date: 1897 the standard deviation of the probability function or probability density function of a random variable and especially of a statistic; specifically the standard error of the mean of a sample from a population with a normal… … New Collegiate Dictionary

**standard error** — noun 1. : standard deviation 2. : standard deviation divided by the square root of the number of items in a sample tested : the standard deviation of the sample mean * * * ˌstandard ˈerror 7 [standard error] … Useful english dictionary

**standard error** — (of a mean) the extent to which the means of several different samples would vary if they were taken repeatedly from the same population. Differences between means are said to have statistical significance when they are greater than twice the… … Medical dictionary

**standard error** — /stændəd ˈɛrə/ (say standuhd eruh) noun 1. → standard deviation. 2. standard deviation divided by the square root of the number of items in the sample; the standard deviation of the sample mean … Australian-English dictionary

**standard error** — Statistics. the standard deviation of a distribution of a sample statistic, esp. when the mean is used as the statistic. [1895 1900] * * * … Universalium

**standard error** — noun A measure of how spread out data values are around the mean, defined as the square root of the variance. Syn: standard deviation … Wiktionary

**Regression toward the mean** — In statistics, regression toward the mean (also known as regression to the mean) is the phenomenon that if a variable is extreme on its first measurement, it will tend to be closer to the average on a second measurement, and a fact that may… … Wikipedia