题目内容
The last paragraph implies that _______.
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Read the text again and decide whether the following statements are True, False, or Not Givenaccording to the text.1. Customers become bad-tempered, and they always complain about some “ trifles ”.2. Words from Harvey’s book Seducing the Vigilante Customer are cited by customers in their complaint letters.3. Harvey’s “ how-to ” guide is too simple to put into practice.4. The rules of Harvey’s “ how-to ” guide have been abided by strictly in business practice for a long time.5. The seventh paragraph indicates that if a company adopts automated phone systems, it treats its customers like second-class citizens.6. The ATMs outside banks in Perth are welcomed by customers because they are very convenient.7. It took 15 years for Harvey to write Seducing the Vigilante Customer.8. The Internet plays an important role in creating “ the vigilante ”.9. It is inescapable for a company to invest a lot of money for the sake of customer satisfaction.10. The quality and level of customer service have decreased in recent years.
四分位差是顺序数据中处于80％位置上的数值与处于25％位置上的数值之差。
方差和标准差是最常用的描述等距数据和等比数据的离散程度的指标。
用定距尺度和定比尺度测量获得的结果被称为参数变量。
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