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SAT官方每日一题附答案和解析[数学](2018年11月7日)
日期:2018-11-07 09:26

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每日一题

Mathematics

SAT官方每日一题附答案和解析[数学](2018年11月7日)

For each of the largest 21 airline companies in Europe, the average flight delay was calculated and is shown in the dot plot above. If the dots representing the two airlines with the longest average flight delays are removed from the dot plot, what will happen to the mean, median, and range of the new data set?

A.Only the mean will decrease.
B.Only the mean and range will decrease.
C.Only the mean and median will decrease.
D.The mean, median, and range will decrease.

答案和解析

答案:B

解析:

Choice B is correct.

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重点单词
  • delayv. 耽搁,推迟,延误 n. 耽搁,推迟,延期
  • plotn. 阴谋,情节,图,(小块)土地, v. 绘图,密谋,
  • flightn. 飞行,航班 n. 奇思妙想,一段楼梯 n.
  • calculatedadj. 计算出的;适合的;有计划的 v. 计算;估计;
  • rangen. 范围,行列,射程,山脉,一系列 v. 排列,归类于