您現在的位置： 首頁 > SAT > SAT每日一題 > 正文
答案：A
解析：
Choice A is correct. In order to produce unbiased, valid data, the sample should be randomly selected and be representative of the entire population of interest. In this case, an appropriately conducted survey should give each consumer aged 18 to 29 years in the city an equal chance of being surveyed.
The choices that involve a particular high school, the chess team, and computer campers would not be representative of the entire population of 18- to 29-year-olds in the city.
| 重點單詞 | 查看全部解釋 | |||
| survey | [sə:'vei] |
想一想再看 v. 調查，檢查，測量，勘定，縱覽，環視 |
||
| involve | [in'vɔlv] |
想一想再看 vt. 包含，使陷入，使忙于，使卷入，牽涉 |
聯想記憶 | |
| population | [.pɔpju'leiʃən] |
想一想再看 n. 人口 ，(全體)居民，人數 |
聯想記憶 | |
| representative | [repri'zentətiv] |
想一想再看 adj. 代表性的，代議制的，典型的 |
||
| produce | [prə'dju:s] |
想一想再看 n. 產品，農作物 |
聯想記憶 | |
| unbiased | ['ʌn'baiəst] |
想一想再看 adj. 公正的 |
聯想記憶 | |
| randomly | ['rændəmli] |
想一想再看 adv. 任意地，隨便地，胡亂地 |
||
| sample | ['sæmpl] |
想一想再看 n. 樣品，樣本 |
聯想記憶 | |
| determine | [di'tə:min] |
想一想再看 v. 決定，決心，確定，測定 |
聯想記憶 | |
| multiple | ['mʌltipl] |
想一想再看 adj. 許多，多種多樣的 |
聯想記憶 |
評論
打印
