1. If a person asks everyone who lives in his apartment building how many cars they own to determine the average number of cars owned by residents of North Carolina, what type of sampling method is being used? (a). systematic (b). random (c). stratified (d). cluster (e). convenience 2. If every tenth person leaving a department store is asked to complete a survey about their shopping experience, what type of sampling method was used? (a). systematic (b). random (c). stratified (d). cluster (e). convenience