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SAT官方每日一题附答案和解析[数学](2020年7月7日)

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Mathematics

In a recent study to determine how often people in different parts of the United States check the weather, a random sample of residents in New England and a random sample of residents on the West Coast were surveyed. The study found over 90% of people surveyed in New England checked the weather daily, while 70% of people surveyed on the West Coast did so. If the margin of error of both samples were the same, which of the following statements is best supported by the study's findings?

A.People in New England check the weather more often because the climate is colder than on the West Coast.
B.People in New England check the weather more often because there is more weather coverage on television than there is on the West Coast.
C.There is evidence that people in New England check the weather more often than people on the West Coast.
D.There is evidence that people in New England check the weather on their smartphones more than do people on the West Coast.

重点单词   查看全部解释    
conclusion [kən'klu:ʒən]

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n. 结论

 
evidence ['evidəns]

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n. 根据,证据
v. 证实,证明

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interview ['intəvju:]

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n. 接见,会见,面试,面谈
vt. 接见,采

 
survey [sə:'vei]

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v. 调查,检查,测量,勘定,纵览,环视
n.

 
margin ['mɑ:dʒin]

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n. 差额,利润,页边空白,边缘
vt. 使围

 
guarantee [.gærən'ti:]

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n. 保证,保证书,担保,担保人,抵押品
vt

 
reasonable ['ri:znəbl]

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adj. 合理的,适度的,通情达理的

 
sample ['sæmpl]

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n. 样品,样本
vt. 采样,取样

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random ['rændəm]

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adj. 随机的,随意的,任意的
adv. 随

 
check [tʃek]

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n. 检查,支票,账单,制止,阻止物,检验标准,方格图案

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