A B C D x-bar 85 60 40 80 S 5 10 3 5 X 85 70 49 70 This was an example given in class in relation to z-scores. The explanation was that each letter A-D is represenative of a student being grades...

This was an example given in class in relation to z-scores. The explanation was that each letter A-D is represenative of a student being grades Relative to a Recitation class.

We were made aware that student C in this case would be the one with th highest grade. I do not understand z-scores or how they relate to the table at all.