Yeah, there's no difference between a Norwegian and a Yemeni. Like there's no difference between Malay and Japanese people. Kidding aside, you probably meant 'Caucasian'.
No, I meant white. I believe they're all (not sure where the lines are drawn exactly) officially (by the gov't) considered white over here but I don't know how you guys categorize people elsewhere.
EDIT Found it on census.gov