He doesn't have an overall average of the improvement.
他不知道这次改进总体上平均提高了多少效率。
This percentage breakdown is then used in the calculation of an overall average school salary which includes average salaries for each sector.
这些百分比然后用于计算商学院的整体平均薪资,其中包括各行业的平均薪资。
The separate estimate for all smear-positive tuberculosis cases was 72% (95% CI: 53-91), giving an overall average for the three estimates of 70% (95% CI: 58-82).
单独来看,所有痰涂片阳性肺结核检出率估计为72%(95%的置信区间:53 - 91)。三个估值的总平均数为70%(95%的置信区间:58 - 82)。
One person might be a little low one day, another person might be high, a lot of people might-- you might happen to have captured them on an average day, but overall it averages out, so you get a representative sample.
一个人可能某一天少吃些,另一个人可能多吃些,很多人都会这样,你可能正好得出人们,平均每天的摄入量,但把它的整体平均一下,就得到有代表性的结果
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