Classify each of the following attributes as either categorical or numerical. for those that are numerical, determine whether they are discrete or continuous. (a) brand of computer purchased by a customer. categorical numerical (discrete) numerical (continuous) (b) state of birth for someone born in the united states. categorical numerical (discrete) numerical (continuous) (c) price of a textbook. categorical numerical (discrete) numerical (continuous) (d) concentration of a contaminant (micrograms per cubic centimeter) in a water sample. categorical numerical (discrete) numerical (continuous) (e) zip code. (think carefully about this one.) categorical numerical (discrete) numerical (continuous) (f) actual weight of coffee in a 1 lb can. categorical numerical (discrete)