I sat this one as my first ECE and took it just for a lark. I didn't study for it, knew very little of the answers that it asked for, and still managed to come away with a "D". That didn't count (or at least didn't before the new year) towards my degree, but it gave me a taste of the ECE's.
I think World Pop has a pretty large grading curve, so if you've done all of that studying, then you should easily do better than I did. Don't sweat it. Until you get the grade back you won't know, so start studying for the next test on your list.
