This is the result of screening resumes, a list of score bar graphs in ranked order. The narrow bars have complete information, hence a single scored value. The wider bars have a question mark unresolved from the resume, so what is shown is the range of possible scores given all the other information available. Since we were looking for the best half-dozen for interviews we could see by the overlaps who the potential winner might be.
The red bars were disqualified by a "must-have" value. Since we had enough candidates we could ignore them, but we could instead reconsider the requirement if someone popped up as a potential winner otherwise.