某汽車生產(chǎn)商欲了解廣告費用X對銷售量Y的影響,收集了過去12年的有關(guān)數(shù)據(jù)。通過計算得到下面的有關(guān)結(jié)果:
當廣告費用為10000時,銷售量為多少?您可能感興趣的試卷
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品合格率指標是()
某廠某年職工勞動生產(chǎn)率為20000元,是歷史最高水平的1.2倍。這里的1.2倍是()
One advantage of a stem and leaf plot over a frequency distribution is that ().
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?()
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
A student achieves an 82 on the first test in a statistics course. From this, she assumes that her average at the end of the semester (after other tests) will be about 82. This is an example of ().
某企業(yè)的生產(chǎn)計劃完成百分比采用如下分組,請指出哪項是正確的()
某班的學習按考試成績分為60分以下,60-70,70-80,80-90,90-100,這種分組()
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). The average number of absences per employee, calculated from the personnel data of all employees, is a ().
在組距數(shù)列中,下限就是()