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# mean plus and minus one standard deviation

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 03:15 May 20, 2017
English to Portuguese translations [PRO]
Medical - Medical: Pharmaceuticals
 English term or phrase: mean plus and minus one standard deviation Mean hemoglobin values for each dose group in the study. The vertical bars represent the mean plus and minus one standard deviation.
 Andre DamascenoBrazil Local time: 03:51

4 +6a média mais e menos um desvio padrão
 Martin Riordan

43 mins   confidence: peer agreement (net): +6
a média mais e menos um desvio padrão

Explanation:
As barras verticais definem uma faixa, que vai da média menos um desvio padrão até a média mais um desvio padrão. Ou seja, 68,27% dos valores, de acordo com a explicação no link. Assim que entendo a frase.

Example sentence(s):
• In statistics, the 68–95–99.7 rule is a shorthand used to remember the percentage of values that lie within a band around the mean in a normal distribution with a width of two, four and six standard deviations

https://en.wikipedia.org/wiki/68%E2%80%9395%E2%80%9399.7_rule
 Martin RiordanBrazilLocal time: 03:51Meets criteriaNative speaker of: English, PortuguesePRO pts in category: 20

agree
 5 hrs

agree
 5 hrs

agree
 7 hrs

agree
 8 hrs

agree  Mario Freitas: Ok, but this "one" could be the value 1 instead of an article function, i.e., this could be "a standard deviation of plus or minus 1" not exactly well written in PT.
 10 hrs
-> Obrigado! Certainly "one" refers to one unit, i.e. "1". Note that the English says "plus AND minus", not "plus OR minus", and the "plus and minus" operate on the mean.

agree
 11 hrs