If this is a true or false, I would say the answer would be true. If a business wants to find out the overall opinion of customers, they would need several opinions from many customers. If they only asked a couple, and those were the only people who did not like the certain item, then the grading or whatever of the certain item would be wrong because most people actually did like the certain item. If this is not a true or false, then I do not know how to answer this question because there is not enough information. I hope this answer helps! :D