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【简答题】
从某市参加高中数学建模竞赛的1 008份试卷中随机抽取一个容量为54的样本，考查竞赛的成绩分布，将样本分成6组，绘成频率分布直方图（如图），从左到右各小组的小矩形的高的比为1：1：4：6：4：2，据此估计该市在这次竞赛中，成绩高于85分的学生总人数为（ ）人。
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举一反三
【简答题】Nowadays more and more people are concerned about the pollution.（英译中）
【单选题】Nowadays, _______ cars are more and more popular.
A.
electronic
B.
electric
C.
electrical
D.
electricity
【单选题】Nowadays, the traffic in big city is getting more and more crowded.
A.
Nowadays
B.
the traffic in big city
C.
is getting
D.
more and more crowded.
【简答题】9. Nowadays, more
and more businesses (is, are ) becoming paperless.
【单选题】Nowadays more and more people are interested in arranging time for exercises and ______ to release the stress caused by the fast pace and pressure of their lives.
A.
meditation
B.
registration
C.
mediation
D.
illumination
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