An article put out by perturbed mathematician re: statistical concept (10,4)
I believe the answer is:
arithmetic mean
'statistical concept' is the definition.
The definition and answer can be both related to thinking as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'an article put out by perturbed mathematician re' is the wordplay.
I cannot quite see how this works, but
'an' could be 'i' (Roman numeral for one) and 'i' is found within the answer.
'article' could be 'art' (abbreviation for article) and 'art' is found in the leftover letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for arithmetic mean that I've seen before include "average amount" , "Ten is that of nine and eleven" .)