unbiassed

unbiased

[uhn-bahy-uhst]
adjective
not biased or prejudiced; fair; impartial.
Also, especially British, unbiassed.


Origin:
1600–10; un-1 + biased

unbiasedly, adverb


fair, equitable, tolerant, neutral.
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World English Dictionary
unbiased or unbiassed (ʌnˈbaɪəst)
 
adj
1.  having no bias or prejudice; fair or impartial
2.  statistics
 a.  (of a sample) not affected by any extraneous factors, conflated variables, or selectivity which influence its distribution; random
 b.  (of an estimator) having an expected value equal to the parameter being estimated; having zero bias
 c.  Also called: discriminatory (of a significance test). Having a power greater than the predetermined significance level
 
unbiassed or unbiassed
 
adj
 
un'biasedly or unbiassed
 
adv
 
un'biassedly or unbiassed
 
adv
 
un'biasedness or unbiassed
 
n
 
un'biassedness or unbiassed
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

unbiased
1607, lit., in ref to throws at bowls, from un- (1) "not" + pp. of bias. Fig. sense of "impartial, unprejudiced" is recorded from 1647.
Online Etymology Dictionary, © 2010 Douglas Harper
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