Translation guide
Expresses the idea of selecting items or people without any specific pattern, often for surveys, quality checks, or informal selection.
Selecting a subset from a population in a way that each member has an equal chance of being chosen, used in research, quality control, or official surveys.
The standard technical term for random sampling in statistics and research. Literally 'unbiased extraction'.
We conducted random sampling for the survey.
Loanword from English, common in business and tech contexts. Slightly less formal than 無作為抽出.
We will carry out random sampling for quality control.
A more precise statistical term, often used in academic papers. 'Random sample extraction'.
We used a random sampling method.
Picking things or people without any particular order or plan, often in everyday situations.
Means 'to choose randomly/arbitrarily'. Natural for describing a random selection process.
We selected participants at random.
Uses the loanword ランダム. Common in casual speech, especially among younger people.
Play randomly selected songs.
Literally 'choose appropriately', but often implies a casual, somewhat random choice without deep thought. Can carry a nuance of 'haphazardly'.
Can sound like you didn't put much effort into the selection. Not suitable for formal contexts.
Checking a few items or people out of a larger group without prior selection, often for quality or compliance.
無作為 is the native Japanese term and sounds more formal or technical. ランダム is a loanword and is common in casual or IT-related contexts. In academic writing, 無作為 is preferred.
Random sampling is fundamental to statistics.
We made teams by randomly picking friends.
The phrase 'random sampling' cannot be directly translated word-for-word into natural Japanese. Use the expressions provided based on context.
We used random sampling to select households for the survey.
The teacher did a random sampling of homework to check.
I went out in clothes I picked at random.
I underwent a random inspection at customs.