figuring out a class evaluation score minus outlier

Hi,

I have a some course evaluation data that I want to do a what-if analysis with (namely, "what would the median have been if one person didn't throw off the average with a ridiculously low score").

There were 5 options on the evaluation form (I don't know how each is weighted). Each of the top 3 grades were chosen by 2 students. The remaining student in the 7-person class chose the bottommost grade.

The median listed in the report is 2.57, with a standard deviation of 1.40.

Can I calculate what the mean would've been without that outlier with any precision even though I don't know weights used?

Thanks.

BB