判断题在SPSS运行时,可以同时打开多个数据编辑窗口和结果输出窗口。

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The number of phone calls arriving at a switchboard each hour has been recorded and the following frequency distribution has been developed.What is the approximate range of the number of phone calls arriving each hour?()

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最能反映离散程度的指标是()

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常用的长期趋势测定的方法有哪些?各有什么特点?

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The number of phone calls arriving at a switchboard each hour has been recorded and the following frequency distribution has been developed.What is the cumulative frequency of the third class?()

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某企业的生产计划完成百分比采用如下分组,请指出哪项是正确的()

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企业生产一种产品需顺次经过四个车间,这四个车间的废品率分别为1.5%、2.0%、2.0%和1.0%。该企业生产这种产品的平均废品率是多少?

题型:问答题

某厂某年职工劳动生产率为20000元,是历史最高水平的1.2倍。这里的1.2倍是()

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Which of the following is best to show the percentage of a total budget that is spent on each category of items?()

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一个地区一定时期的商品零售额属于()

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Simon Arnett, Director of Human Resources, is exploring the causes of employee absenteeism at Buderim Bottling during the last operating year (1 January 2005 to 31 December 2005). Personnel records of 50 employees are selected for analysis. (The plant employs 250.) For this study, the average number days absent for these 50 employees is a ().

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