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1 为评价家电行业售后服务的质量,随机抽取了由 100 个家庭构成的一个样本。服务质量的等级分别表示为: A. 好; B. 较好; C. 一般; D. 较差; E. 差。调查结果如下: B E C C A D C B A E D A C B C D E C E E A D B C C A E D C B B A C D E A B D D C C B C E D B C C B C D A C B C D E C E B B E C C A D C B A E B A C D E A B D D C A D B C C A E D C B C B C E D B C C B C (1) 指出上面的数据属于什么类型。 (2) 用 Excel 制作一张频数分布表 (3) 用 Excel 绘制一个条形图,放映评价等级的分布 (4) 用 Excel 绘制评价等级的帕累托图
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【单选题】(Unit5TextB课文段落) What people typically fail to recognize is that advertisers target people with money to burn. We ’ re endlessly exposed to advertising directed at the rich. And things have gotten wor...
A.
these poor people
B.
these wealthy people
C.
these young people
D.
these old people
【单选题】(Unit5TextB课文段落) In the depths of addiction, it often appears that there ’ s no way out. This is certainly the case with the cultural addiction of consumerism. We regularly hear that our economy is 70...
A.
True
B.
False
【单选题】(Unit5TextB课文段落) A recent story in my local newspaper dealt with a sad-case family. The son was in jail for drugs, and his mother was trying desperately to find a way to give her son hope. 题目: Why was...
A.
He stole many cars.
B.
He took drugs.
C.
He cheated his friends.
D.
He killed his friends.
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