Standard deviation of weighted arithmetic mean 加权算术平均值的标准(偏)差
NO emissions and NO2 emissions decreased with the ratio of wood powder to plastic powder increasing, and the NO emissions were lower when co-combustion than the weighted arithmetic mean of NO emissions when these two fuels combusted respectively. 随木粉和塑料粉混合比例增加,NO和NO2生成浓度均降低,且共燃时NO的生成量低于两种物料单独焚烧时其生成量的线性叠加。
Results: According to specialist's prediction, 6 predict valuables, that is, weighted arithmetic mean, full-score ratio, coefficient of variation, sum of ranks, coefficient of concordance and significance test are calculated. 研究结果:经过专家预测,计算出加权算术平均值、满分率、变异系数、等级和、协调系数及协调系数的显著性检验六个变量预测值。
Breaking down the rate of technological progress into the growth rate of capital productivity and that of labor productivity, both are expressed in terms of weighted arithmetic mean sum, a 4-factor equation is got to express how an economic growth goes ahead. 将技术进步率分解为资本生产率增长率与劳动生产率增长率的加权算术平均和的形式,得出四要素经济增长方程;
The computation of grid centroid uses weighted mean instead of arithmetic mean. Consequently, the position of grid centroid can represent the space distribution of data points indirectly. Moreover, the incremental updating of the centroid saves a lot of time and space. 网格质心的计算采用加权平均值而非算术平均值,因此质心的位置能够间接反应网格中数据点的分布情况,质心的增量式更新为算法节约了大量的时间和空间。
The three data processing results were compared, which were traditional weighted data-fusion algorithm, adaptive weighted data-fusion algorithm and simple arithmetic mean processing. 并分别对普通的加权融合算法、自适应加权融合算法和传统的算术平均值法对数据进行处理结果进行了比较,依此对实验方案和参数进行改进提高。