Finally, we discussed the difference of College Students' Motivation for providing ENWOM with each statistical variable, and the relationships with internal and external character.

最后探讨大学生网络消极口碑传播动机在各统计变量上的差异以及与内外向人格之间的关系。

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The trick is to find an “instrumental variable” which can act as a proxy for one variable in a statistical analysis, but which is clearly unrelated to the others.

诀窍在于找到一种“工具性可变因素”，它能在统计分析中代替某种可变因素，但它显然与其他可变因素无关。

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In DB2 V8 FP9, the registry variable setting DB2_STATVIEW is needed, and there is a constraint that only 2 table references can be in the statistical view.

在DB 2 V 8 FP9中，需要设置注册表变量db2_statview，并且统计视图中只能有2个表引用。

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Disentangling the two relationships is impossible unless a third variable with the right statistical properties, a so-called instrument, can be found and exploited.

ECONOMIST: Economics focus