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SAT官方每日一题附答案和解析[数学](2020年7月3日)

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Mathematics>Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

A consumer-monitoring service wants to determine television viewing habits among 18- to 29-year-olds in a particular city. Which of the following survey methods is most likely to produce valid results?

A.Select a random sample of 1000 18- to 29-year-olds in that city.
B.Select a random sample of 1000 18- to 29-year-olds in that city who attended a computer camp when they were in high school.
C.Select a random sample of 1000 18- to 29-year-olds in that city who played a varsity sport in high school.
D.Select a random sample of 1000 18- to 29-year-olds in that city who played chess in high school.

重点单词   查看全部解释    
[sə:'vei]

想一想再看

v. 调查,检查,测量,勘定,纵览,环视
n.

 
[in'vɔlv]

想一想再看

vt. 包含,使陷入,使忙于,使卷入,牵涉

联想记忆
[.pɔpju'leiʃən]

想一想再看

n. 人口 ,(全体)居民,人数

联想记忆
[repri'zentətiv]

想一想再看

adj. 代表性的,代议制的,典型的
n. 代

 
[prə'dju:s]

想一想再看

n. 产品,农作物
vt. 生产,提出,引起,

联想记忆
['ʌn'baiəst]

想一想再看

adj. 公正的

联想记忆
['rændəmli]

想一想再看

adv. 任意地,随便地,胡乱地

 
['sæmpl]

想一想再看

n. 样品,样本
vt. 采样,取样

联想记忆
[di'tə:min]

想一想再看

v. 决定,决心,确定,测定

联想记忆
['mʌltipl]

想一想再看

adj. 许多,多种多样的
n. 倍数,并联

联想记忆


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