representative sample代表性試樣代表抽樣學術名詞代表樣本:地球科學、統計學、紡織科技、數學、市場學代表性樣本:化學術語、心理學、電機工程、機械工程代表性樣品:化學術語、礦冶工程、礦物學代表樣品:會計學、土木工程代表性試樣:食品科技、礦物學英文釋義the population is divided into strata and a random sample is taken from each stratum