i am trying to get the function: 1-365!/((365-n)!*365^n) to graph itself properly; this function/formula is more commonly known as, "the birthday problem." I am looking in to this merely for curiosity, but I am also interested because I'm trying to continue exercising my math skills now that I am no longer in college. Could someone please show me what is wrong with my formula or, if nothing is wrong with it mathematically, why I cannot get it to display on a graph as anything but a line? As an added note, I have substituted "n" as "x" when using the website's graphing feature.

Guest Nov 14, 2014