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While trying to write about an experiment I have done, I am having trouble
deciding which words are appropriate for describing what I want to describe.

In non-scientific English, **precise, and accurate** have mostly overlapping
meaning, as evidenced by the jisho entry for 正確 containing all three.

However, when using these words in a formal setting, the difference in meaning
becomes more apparent. I was hoping to know if anyone has knowledge on what
Japanese words would be used or how they are used to convey a similar
difference while speaking Japanese.

* * *

A brief delineation of what I consider the differences between the three
words:

> **accuracy** : A measure of how much a method/machine gives repeated results
> clustered around the _true_ answer.
>
> **precision** : A measure of how much a measurement method/machine gives
> repeated results close to _each other_.

(These are the nouns rather than the adjectives, but I found the nouns less
wordy to define)

See image for visualization:

[![illustration of the differences of precision and accuracy
](https://i.stack.imgur.com/B3gX9.png)](https://i.stack.imgur.com/B3gX9.png)

So, if anyone has insight into how to express these terms in Japanese, both
accurately and precisely, that would be appreciated!

**Edit:** If there is also common words for the opposite of these concepts
(i.e. inaccurate or imprecise) those would be useful too.
CC BY-SA 4.0
2019-07-12T04:06:30.947
69430
2019-07-12T05:41:35.160
2020-06-17T08:18:27.500
-1
34051
question
word-choice usage
Science writing - exact, precise, or accurate
In scientific contexts where accuracy and precision are clearly distinguished,
use:

  * accurate = 正確(な); accuracy = 正確性/正確度
  * precise = 精密(な); precision = 精密性/精密度

精度 is also used to translate precision, but since it's defined inconsistently
in some areas, I personally do not prefer this term when the distinction is
important.

Reference:
[正確度と精度](https://ja.wikipedia.org/wiki/%E6%AD%A3%E7%A2%BA%E5%BA%A6%E3%81%A8%E7%B2%BE%E5%BA%A6)
CC BY-SA 4.0
2019-07-12T05:11:50.853
69431
2019-07-12T05:41:35.160
2019-07-12T05:41:35.160
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5010
69430
answer