... statistical chart ==> 统计表,统计图 statistical circles ==> 统计界 statistical classification ==> 统计分类法 ...
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两个回归参数相等性检验一直是统计界感兴趣的问题之一。
Testing equality of two Regression functions has long been an interesting issue in statistical inference.
但是到目前为止，统计界的许多工作都只是以提高拟合精度为目标进行的，很少看到专门致力于预测的文章。
However, up to now, many work in the field of statistics only is done to improve accuracy of fit, people can hardly find out any article especially for forecasting.
刚公布的2009年世界卫生统计报告显示，和1990年相比，2007年儿童死亡人数减少了27%。 2007年也是汇编统计的最后一年。
The just released report, World Health Statistics 2009, shows 27 percent fewer children died in 2007, the last year for which statistics were compiled, than in 1990.
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