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SAT官方逐日一题附答案息争析[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   检查全部表明    
survey [sə:'vei]

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v. 观察,反省,丈量,勘定,纵览,环顾
n.

 
involve [in'vɔlv]

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vt. 包括,使堕入,使忙于,使卷入,扳连

遐想影象
population [.pɔpju'leiʃən]

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n. 生齿 ,(全体)住民,人数

遐想影象
representative [repri'zentətiv]

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adj. 代表性的,代议制的,典范的
n. 代

 
produce [prə'dju:s]

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n. 产物,农作物
vt. 消费,提出,惹起,

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unbiased ['ʌn'baiəst]

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adj. 公平的

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randomly ['rændəmli]

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adv. 恣意地,随意地,胡乱地

 
sample ['sæmpl]

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n. 样品,样本
vt. 采样,取样

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determine [di'tə:min]

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v. 决议,决计,确定,测定

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multiple ['mʌltipl]

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adj. 很多,多种多样的
n. 倍数,并联

遐想影象

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