“unbiased sample”簡單造句，unbiased sample造句子

Care should be taken to obtain an unbiased sample.

To find out, you'd have to take a systematic and unbiased sample – perhaps a whole week's worth of stories – and then check the evidence behind every claim.

First, we needed a representative, unbiased sample of news stories, so we bought every one of the top 10 bestselling UK newspapers, every day for one week.