An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 7 Search : sample
biased sample
  نمونان ِ ورکدار   
nemunân-e varakdâr

Fr.: échantillon biaisé   

A sample that is not a true representative of a → statistical population to which generalizations are to be made. A sample which is not → randomly constituted.

biased; → sample.

random sample
  نمونان ِ کاتوره   
nemunân-e kâturé

Fr.: échantillon aléatoire   

A sample selected at random from a population.

random; → sample.

sample
  نمونان   
nemunân

Fr.: échantillon   

Statistics: A portion of the units of a population. The units are selected based on a randomized process with a known probability of selection. The sample is used to make inferences about the population by examining or measuring the units in the sample. → specimen = nemuné (نمونه).

M.E., from O.Fr. essample, from L. exemplum "a sample," literally "that which is taken out," from eximere "to take out, remove."

Nemunân, from nemun, from nemudan "to show;" Mid.Pers. nimūdan, nimây- "to show," from O.Pers./Av. ni- "down; into," → ni- (PIE), + māy- "to measure;" cf. Skt. mati "measures," matra- "measure;" Gk. metron "measure;" L. metrum; PIE base *me- "to measure."

sample point
  نقطه‌ی ِ نمونان   
noqte-ye nemunân

Fr.: point de l'échantillon   

Statistics: Each possible outcome in a → sample space.

sample; → point.

sample size
  اندازه‌ی ِ نمونان   
andâze-ye nemunân

Fr.: taille de l'échantillon   

The number of sampling units which are to be included in the sample. In the case of a multi-stage sample this number refers to the number of units at the final stage in the sampling.

sample; → size.

sample space
  فضای ِ نمونان   
fazâ-ye nemunân

Fr.: espace des échantillons   

Statistics: A set which consists of all possible outcomes of a random experiment.

sample; → space.

unbiased sample
  نمونان ِ بی‌وَرَک   
nemunân-e a bi-varak

Fr.: échantillon non biaisé   

A sample in which every individual element in the population has an equal chance of being selected.

unbiased; → sample.