| 单词 | central limit theorem |
| 释义 | central limit theoremnoun Statistics.any of several theorems stating that the sum of a number of random variables obeying certain conditions will assume a normal distribution as the number of variables becomes large. Origin of central limit theoremFirst recorded in 1950–55 Words nearby central limit theoremcentralism, centrality, centralization, centralize, Central Karoo, central limit theorem, central locking, central lymph node, central moment, central necrosis, central nervous system Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for central limit theoremcentral limit theorem nounstatistics the fundamental result that the sum (or mean) of independent identically distributed random variables with finite variance approaches a normally distributed random variable as their number increases, whence in particular if enough samples are repeatedly drawn from any population, the sum of the sample values can be thought of, approximately, as an outcome from a normally distributed random variable Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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