Answer :
The mistake that the journalist would be making is assuming that correlation always equals causation
Who is a Journalist?
This refers to the person that is charged with the reporting of news to the general public.
Hence, we can see that the use of a correlational study to back up a claim about eating dark chocolate or any other thing, it would be a big mistake because the use of correlation doesn't always mean causation.
Read more about correlation study here:
https://brainly.com/question/4219149
#SPJ1