In general, what would a zerozero residual mean in this context? a. a zerozero residual means the student has the exact verbal score thatthe exact verbal score that the linear model would predict. b. a zerozero residual means the student has a higher verbal score thana higher verbal score than the linear model would predict. c. a zerozero residual means the student has a lower verbal score thana lower verbal score than the linear model would predict.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.