Math
posted by Ana .
Fill in the blank so that the given statement is true.
The median is 77
65,68,78,82,89,__

Adding another number would result in an even number of terms.
For such an even number of terms, the median is the average of the two middle terms
that is,
(78+82)/2 = 80
no matter what we add has no effect on the median, and it would not be 77 anyway. 
forget my answer, go with MathMate's further up.
I misread the question.