statistics, the standard deviation is a measure of the amount of variation of a random variable expected about its mean. A low standard deviation indicates...
55 KB (7,602 words) - 19:23, 24 May 2024
preferred to the more usual standard deviation. Note that unlike the usual arithmetic standard deviation, the geometric standard deviation is a multiplicative...
4 KB (710 words) - 03:07, 9 April 2024
Coefficient of variation (redirect from Relative standard deviation)
also known as normalized root-mean-square deviation (NRMSD), percent RMS, and relative standard deviation (RSD), is a standardized measure of dispersion...
30 KB (4,015 words) - 16:59, 17 May 2024
unbiased estimation of a standard deviation is the calculation from a statistical sample of an estimated value of the standard deviation (a measure of statistical...
18 KB (2,951 words) - 11:35, 10 May 2024
Look up standard deviation in Wiktionary, the free dictionary. Standard deviation is a widely used measure of variability or diversity used in statistics...
797 bytes (123 words) - 17:51, 29 March 2022
In statistics, the standard score is the number of standard deviations by which the value of a raw score (i.e., an observed value or data point) is above...
15 KB (1,883 words) - 18:22, 9 March 2024
The standard error (SE) of a statistic (usually an estimate of a parameter) is the standard deviation of its sampling distribution or an estimate of that...
20 KB (2,691 words) - 14:40, 3 December 2023
Pooled variance (redirect from Pooled standard deviation)
known as a pooled standard deviation (also known as combined standard deviation, composite standard deviation, or overall standard deviation). In statistics...
14 KB (3,138 words) - 06:10, 2 February 2024
statistics, the standard deviation line (or SD line) marks points on a scatter plot that are an equal number of standard deviations away from the average...
2 KB (330 words) - 01:31, 14 May 2023
Normal distribution (redirect from Standard normal distribution)
median and mode), while the parameter σ {\displaystyle \sigma } is its standard deviation. The variance of the distribution is σ 2 {\displaystyle \sigma ^{2}}...
142 KB (22,359 words) - 21:00, 28 May 2024