from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The standard deviations of the sample in a frequency distribution, obtained by dividing the standard deviation by the total number of cases in the frequency distribution.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A measure of how spread out data values are around the mean, defined as the square root of the variance.
Sorry, no etymologies found.
For experienced programmers, other items of interest in the sys module include sys. stdin, sys. stdout and sys. stderr which correspond to the standard input, standard output and standard error streams of your program respectively.