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🇵🇹Portuguese Source WordCode: PT

Pontuação z

Pronunciation / Transliteration: põ.twaˈsɐ̃w z

🇬🇧 Direct English Meaning:
Z-score/ˈziː.skɔːr/
nounCEFR C1 (Advanced)Top #8500 frequency
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🇵🇹 Example Sentence in Portuguese:

"Uma pontuação z de -2 indica que o valor está duas desvios padrão abaixo da média."

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A statistical measurement that describes a value's relationship to the mean of a group of values, expressed in terms of standard deviations from the mean.

    "In a normal distribution, a z-score of 2 indicates that the value is two standard deviations above the mean."
  2. 2

    A method used in statistics to determine how far away a particular score is from the average score.

    "By calculating the z-score, researchers can identify outliers in their data set."
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Thesaurus & Semantic Spectrum

Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term combines the letter 'z', commonly used in statistics to denote a standard normal variable, with the English noun 'score', originating from Old Norse 'skor' meaning notch or tally. It emerged in the mid-20th century with the widespread adoption of standard score normalization in psychometrics and mathematical statistics.

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