Jenet, a belated welcome aBoard to you! Nice to have you.Those quarters are also loosely referred to as quartiles Thank you for that clarification: I'd been wondering, because it was fairly easy for me to picture a circle with 3 horizontal lines dividing the circle into four equal parts. (Hmm, dunno why I didn't picture a square, come to think of it...) And I was wondering how one might distinguish between the line and the part.
'Nother question--can quartiles be...er, visual? Or are they as Faldage put: simply an understood demarcation point? Could I, looking at my circle, point to one of those lines and call it a quartile?