[官方出品]SAT数学练习题daily practice（2018年4月11日）

北京sat培训,sat备考资料,sat网课,sat培训机构,sat保分班,sat真题

易伯华sat频道为大家2018年4月11日的SAT数学每日一练：考察对抽样数据的理解。配有答案与解析，众考生，慢慢操练吧。

In a recent study to determine how often people indifferent 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.

答案：C

解析：

Choice C is correct. A sample survey is a study that obtains data from a

subset of a population, usually through a questionnaire or interview, in order

to estimate population attributes.

Since the margin of error is the same for each sample, the only reasonable

conclusion based on the data from the observational study is that there is

evidence (although not a guarantee) that people in New England check the weather

more often than people do on the West Coast.

以上就是易伯华SAT频道为大家带来的2018年4月11日的sat数学每日一练的全部内容。既要平时操练得当，也要临考淡定优雅。希望SATer能早日攻克SAT数学难关，并最终于SAT分手。更多SAT数学相关备考信息，请持续关注易伯华SAT频道。