When you want to say you don't have a lot of data but have a personal data point, just one story, but that could be useful - what's the word for that?
There is a famous quote by Jeff Bezos where he says he pays attention to emails sent directly to him because they serve as
.... Often if the data doesn't agree with that one piece of
..., the data is wrong.
The term can also be used in a negative way - "this isn't reliable statistical data, it's just