First of all, I am not asking whether it is ethical to round one's GPA. I essentially rounded my GPA by accident and want to know the possible consequences of this.
I applied to the NSF GRFP. Recently, I read that when and how to round one's GPA can be subtle questions, but at the time I wrote the application I did not realize that. The GPA on my transcript is 3.887 but I wrote 3.9 on the application, not thinking twice about it because I was just using typical rounding rules. In addition, I kind of thought that, since reviewers will see my transcript, it didn't really matter if I wrote 3.88 or 3.9 because they will have the official GPA in front of them anyway.
Now I am worried this will negatively affect my application. There is no GPA "cutoff" of 3.9 for the GRFP so it won't disqualify me or anything, but I wonder if it will change reviewers' opinions of me.
Please tell me - what would you do if you saw this on an (otherwise very strong I think) application? Would this make you more likely to reject the applicant?