411 REFERENCE · Wiktionary
Stein's example
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after Charles Stein of Stanford University, who discovered the phenomenon in 1955.
Proper noun
en decision theory estimation theory The observation that, when three or more parameters are estimated simultaneously, there exist combined estimators more accurate on average (that is, having lower expected mean squared error) than any method that handles the parameters separately.
en Stein's paradox Stein's phenomenon
See also
en Stein's law<qq:different concept, different Stein>
en eponyms