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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時間序列構(gòu)成因素有哪些?分解的基本原理和思路是什么?
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()
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()
變量數(shù)列中,各組頻率之和應(yīng)()
要了解某地區(qū)全部大學(xué)生的就業(yè)情況,那么()
A cumulative frequency polygon is also called ().
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
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 the individual class frequency is divided by the total frequency, the result is the ().