state police set up a roadblock to estimate the percentage of cars with up-to-date registration, insurance, and safety inspection stickers. it would be too inconvenient and costly to check every vehicle that passes through a checkpoint, so they decide to stop about 1/20 of the vehicles. why would a simple random sample be unreasonable for this situation? responses if the police used a list of registered automobiles, they would have to track down each of those owners and the unregistered owners would not be on the list. if the police used a list of registered automobiles, they would have to track down each of those owners and the unregistered owners would not be on the list. randomly picking cars wouldn't be fair to the people who ride the bus. randomly picking cars wouldn't be fair to the people who ride the bus. police might choose cars based on how they look. police might choose cars based on how they look. if they randomly picked cars at a grocery store it wouldn't be a good sample size. if they randomly picked cars at a grocery store it wouldn't be a good sample size.